Merge branch 'master' into pr/12490

Conflicts:
	less/list-group.less

23 files changed, 321 insertions, 203 deletions

diff --git a/less/.csscomb.json b/less/.csscomb.json
index c3d0c088b..8456e41df 100644
--- a/less/.csscomb.json
+++ b/less/.csscomb.json
@@ -1,7 +1,7 @@
 {
   "always-semicolon": true,
   "block-indent": 2,
-  "colon-space": true,
+  "colon-space": [0, 1],
   "color-case": "lower",
   "color-shorthand": true,
   "combinator-space": true,
@@ -10,7 +10,7 @@
   "leading-zero": false,
   "remove-empty-rulesets": true,
   "rule-indent": 2,
-  "stick-brace": true,
+  "stick-brace": " ",
   "strip-spaces": true,
   "unitless-zero": true,
   "vendor-prefix-align": true,
diff --git a/less/bootstrap.less b/less/bootstrap.less
index b368b8710..4f85a0dd3 100644
--- a/less/bootstrap.less
+++ b/less/bootstrap.less
@@ -2,9 +2,10 @@
 @import "variables.less";
 @import "mixins.less";
 
-// Reset
+// Reset and dependencies
 @import "normalize.less";
 @import "print.less";
+@import "glyphicons.less";
 
 // Core CSS
 @import "scaffolding.less";
@@ -17,7 +18,6 @@
 
 // Components
 @import "component-animations.less";
-@import "glyphicons.less";
 @import "dropdowns.less";
 @import "button-groups.less";
 @import "input-groups.less";
diff --git a/less/button-groups.less b/less/button-groups.less
index 58fd90675..27eb796b8 100644
--- a/less/button-groups.less
+++ b/less/button-groups.less
@@ -96,9 +96,9 @@
 //
 // Remix the default button sizing classes into new ones for easier manipulation.
 
-.btn-group-xs > .btn { .btn-xs(); }
-.btn-group-sm > .btn { .btn-sm(); }
-.btn-group-lg > .btn { .btn-lg(); }
+.btn-group-xs > .btn { &:extend(.btn-xs); }
+.btn-group-sm > .btn { &:extend(.btn-sm); }
+.btn-group-lg > .btn { &:extend(.btn-lg); }
 
 
 // Split button dropdowns
diff --git a/less/buttons.less b/less/buttons.less
index 4858a8aea..d4fc156be 100644
--- a/less/buttons.less
+++ b/less/buttons.less
@@ -19,8 +19,12 @@
   .button-size(@padding-base-vertical; @padding-base-horizontal; @font-size-base; @line-height-base; @border-radius-base);
   .user-select(none);
 
-  &:focus {
-    .tab-focus();
+  &,
+  &:active,
+  &.active {
+    &:focus {
+      .tab-focus();
+    }
   }
 
   &:hover,
diff --git a/less/carousel.less b/less/carousel.less
index e53365df4..e3fb8a2cf 100644
--- a/less/carousel.less
+++ b/less/carousel.less
@@ -21,7 +21,7 @@
     // Account for jankitude on images
     > img,
     > a > img {
-      .img-responsive();
+      &:extend(.img-responsive);
       line-height: 1;
     }
   }
@@ -206,8 +206,8 @@
 
   // Scale up the controls a smidge
   .carousel-control {
-    .glyphicons-chevron-left,
-    .glyphicons-chevron-right,
+    .glyphicon-chevron-left,
+    .glyphicon-chevron-right,
     .icon-prev,
     .icon-next {
       width: 30px;
diff --git a/less/code.less b/less/code.less
index 3eed26c05..4d0eadc6d 100644
--- a/less/code.less
+++ b/less/code.less
@@ -17,7 +17,6 @@ code {
   font-size: 90%;
   color: @code-color;
   background-color: @code-bg;
-  white-space: nowrap;
   border-radius: @border-radius-base;
 }
 
diff --git a/less/component-animations.less b/less/component-animations.less
index 1efe45e2c..9400a0d32 100644
--- a/less/component-animations.less
+++ b/less/component-animations.less
@@ -5,7 +5,7 @@
 // Heads up!
 //
 // We don't use the `.opacity()` mixin here since it causes a bug with text
-// fields in IE7-8. Source: https://github.com/twitter/bootstrap/pull/3552.
+// fields in IE7-8. Source: https://github.com/twbs/bootstrap/pull/3552.
 
 .fade {
   opacity: 0;
@@ -17,10 +17,12 @@
 
 .collapse {
   display: none;
-  &.in {
-    display: block;
-  }
+
+  &.in      { display: block; }
+  tr&.in    { display: table-row; }
+  tbody&.in { display: table-row-group; }
 }
+
 .collapsing {
   position: relative;
   height: 0;
diff --git a/less/forms.less b/less/forms.less
index d0189d0cc..273e36608 100644
--- a/less/forms.less
+++ b/less/forms.less
@@ -51,7 +51,7 @@ input[type="search"] {
 input[type="radio"],
 input[type="checkbox"] {
   margin: 4px 0 0;
-  margin-top: 1px \9; /* IE8-9 */
+  margin-top: 1px \9; // IE8-9
   line-height: normal;
 }
 
@@ -133,9 +133,10 @@ output {
   .placeholder();
 
   // Disabled and read-only inputs
-  // Note: HTML5 says that controls under a fieldset > legend:first-child won't
-  // be disabled if the fieldset is disabled. Due to implementation difficulty,
-  // we don't honor that edge case; we style them as disabled anyway.
+  //
+  // HTML5 says that controls under a fieldset > legend:first-child won't be
+  // disabled if the fieldset is disabled. Due to implementation difficulty, we
+  // don't honor that edge case; we style them as disabled anyway.
   &[disabled],
   &[readonly],
   fieldset[disabled] & {
@@ -150,10 +151,24 @@ output {
   }
 }
 
+
+// Search inputs in iOS
+//
+// This overrides the extra rounded corners on search inputs in iOS so that our
+// `.form-control` class can properly style them. Note that this cannot simply
+// be added to `.form-control` as it's not specific enough. For details, see
+// https://github.com/twbs/bootstrap/issues/11586.
+
+input[type="search"] {
+  -webkit-appearance: none;
+}
+
+
 // Special styles for iOS date input
 //
 // In Mobile Safari, date inputs require a pixel line-height that matches the
 // given height of the input.
+
 input[type="date"] {
   line-height: @input-height-base;
 }
@@ -256,18 +271,27 @@ input[type="checkbox"],
   .form-control {
     padding-right: (@input-height-base * 1.25);
   }
-
-  // Feedback icon (requires .glyphicon classes)
-  .form-control-feedback {
-    position: absolute;
-    top: (@line-height-computed + 5); // Height of the `label` and its margin
-    right: 0;
-    display: block;
-    width: @input-height-base;
-    height: @input-height-base;
-    line-height: @input-height-base;
-    text-align: center;
-  }
+}
+// Feedback icon (requires .glyphicon classes)
+.form-control-feedback {
+  position: absolute;
+  top: (@line-height-computed + 5); // Height of the `label` and its margin
+  right: 0;
+  display: block;
+  width: @input-height-base;
+  height: @input-height-base;
+  line-height: @input-height-base;
+  text-align: center;
+}
+.input-lg + .form-control-feedback {
+  width: @input-height-large;
+  height: @input-height-large;
+  line-height: @input-height-large;
+}
+.input-sm + .form-control-feedback {
+  width: @input-height-small;
+  height: @input-height-small;
+  line-height: @input-height-small;
 }
 
 // Feedback states
@@ -334,6 +358,10 @@ input[type="checkbox"],
       width: auto; // Prevent labels from stacking above inputs in `.form-group`
       vertical-align: middle;
     }
+    // Input groups need that 100% width though
+    .input-group > .form-control {
+      width: 100%;
+    }
 
     .control-label {
       margin-bottom: 0;
@@ -399,6 +427,7 @@ input[type="checkbox"],
 
   .form-control-static {
     padding-top: (@padding-base-vertical + 1);
+    padding-bottom: (@padding-base-vertical + 1);
   }
 
   // Only right align form labels here when the columns stop stacking
diff --git a/less/grid.less b/less/grid.less
index 88957f42a..e100655b7 100644
--- a/less/grid.less
+++ b/less/grid.less
@@ -53,11 +53,7 @@
 // Columns, offsets, pushes, and pulls for extra small devices like
 // smartphones.
 
-.make-grid-columns-float(xs);
-.make-grid(@grid-columns, xs, width);
-.make-grid(@grid-columns, xs, pull);
-.make-grid(@grid-columns, xs, push);
-.make-grid(@grid-columns, xs, offset);
+.make-grid(xs);
 
 
 // Small grid
@@ -66,11 +62,7 @@
 // to tablets.
 
 @media (min-width: @screen-sm-min) {
-  .make-grid-columns-float(sm);
-  .make-grid(@grid-columns, sm, width);
-  .make-grid(@grid-columns, sm, pull);
-  .make-grid(@grid-columns, sm, push);
-  .make-grid(@grid-columns, sm, offset);
+  .make-grid(sm);
 }
 
 
@@ -79,11 +71,7 @@
 // Columns, offsets, pushes, and pulls for the desktop device range.
 
 @media (min-width: @screen-md-min) {
-  .make-grid-columns-float(md);
-  .make-grid(@grid-columns, md, width);
-  .make-grid(@grid-columns, md, pull);
-  .make-grid(@grid-columns, md, push);
-  .make-grid(@grid-columns, md, offset);
+  .make-grid(md);
 }
 
 
@@ -92,9 +80,5 @@
 // Columns, offsets, pushes, and pulls for the large desktop device range.
 
 @media (min-width: @screen-lg-min) {
-  .make-grid-columns-float(lg);
-  .make-grid(@grid-columns, lg, width);
-  .make-grid(@grid-columns, lg, pull);
-  .make-grid(@grid-columns, lg, push);
-  .make-grid(@grid-columns, lg, offset);
+  .make-grid(lg);
 }
diff --git a/less/input-groups.less b/less/input-groups.less
index b486cf4d2..a11147463 100644
--- a/less/input-groups.less
+++ b/less/input-groups.less
@@ -17,6 +17,11 @@
   }
 
   .form-control {
+    // Ensure that the input is always above the *appended* addon button for
+    // proper border colors.
+    position: relative;
+    z-index: 2;
+
     // IE9 fubars the placeholder attribute in text inputs and the arrows on
     // select elements in input groups. To fix it, we float the input. Details:
     // https://github.com/twbs/bootstrap/issues/11561#issuecomment-28936855
diff --git a/less/jumbotron.less b/less/jumbotron.less
index a15e16971..27cd8b81d 100644
--- a/less/jumbotron.less
+++ b/less/jumbotron.less
@@ -19,6 +19,10 @@
     font-weight: 200;
   }
 
+  > hr {
+    border-top-color: darken(@jumbotron-bg, 10%);
+  }
+
   .container & {
     border-radius: @border-radius-large; // Only round corners at higher resolutions if contained in a container
   }
diff --git a/less/list-group.less b/less/list-group.less
index 4990002c4..b2f252488 100644
--- a/less/list-group.less
+++ b/less/list-group.less
@@ -64,7 +64,9 @@ a.list-group-item {
     text-decoration: none;
     background-color: @list-group-hover-bg;
   }
-  
+}
+
+.list-group-item {
   // Disabled state
   &.disabled,
   &.disabled:hover,
@@ -72,7 +74,7 @@ a.list-group-item {
     background-color: @list-group-disabled-bg;
     color: @list-group-disabled-color;
     border-color: @list-group-disabled-border;
-    
+
     // Force color to inherit for custom content
     .list-group-item-heading {
       color: inherit;
diff --git a/less/mixins.less b/less/mixins.less
index ae746d83a..9a3fdd3ac 100644
--- a/less/mixins.less
+++ b/less/mixins.less
@@ -54,8 +54,7 @@
 
 // Placeholder text
 .placeholder(@color: @input-color-placeholder) {
-  &:-moz-placeholder            { color: @color; } // Firefox 4-18
-  &::-moz-placeholder           { color: @color;   // Firefox 19+
+  &::-moz-placeholder           { color: @color;   // Firefox
                                   opacity: 1; } // See https://github.com/twbs/bootstrap/pull/11526
   &:-ms-input-placeholder       { color: @color; } // Internet Explorer 10+
   &::-webkit-input-placeholder  { color: @color; } // Safari and Chrome
@@ -141,6 +140,10 @@
   -webkit-transition-duration: @transition-duration;
           transition-duration: @transition-duration;
 }
+.transition-timing-function(@timing-function) {
+  -webkit-animation-timing-function: @timing-function;
+          animation-timing-function: @timing-function;
+}
 .transition-transform(@transition) {
   -webkit-transition: -webkit-transform @transition;
      -moz-transition: -moz-transform @transition;
@@ -149,31 +152,45 @@
 }
 
 // Transformations
-.rotate(@degrees) {
-  -webkit-transform: rotate(@degrees);
-      -ms-transform: rotate(@degrees); // IE9 only
-          transform: rotate(@degrees);
+.scale(@ratio) {
+  -webkit-transform: scale(@ratio);
+      -ms-transform: scale(@ratio); // IE9 only
+          transform: scale(@ratio);
+}
+.scale(@ratioX; @ratioY) {
+  -webkit-transform: scale(@ratioX, @ratioY);
+      -ms-transform: scale(@ratioX, @ratioY); // IE9 only
+          transform: scale(@ratioX, @ratioY);
+}
+.scaleX(@ratio) {
+  -webkit-transform: scaleX(@ratio);
+      -ms-transform: scaleX(@ratio); // IE9 only
+          transform: scaleX(@ratio);
+}
+.scaleY(@ratio) {
+  -webkit-transform: scaleY(@ratio);
+      -ms-transform: scaleY(@ratio); // IE9 only
+          transform: scaleY(@ratio);
 }
-.scale(@ratio; @ratio-y...) {
-  -webkit-transform: scale(@ratio, @ratio-y);
-      -ms-transform: scale(@ratio, @ratio-y); // IE9 only
-          transform: scale(@ratio, @ratio-y);
+.skew(@x; @y) {
+  -webkit-transform: skew(@x, @y);
+      -ms-transform: skewX(@x) skewY(@y); // See https://github.com/twbs/bootstrap/issues/4885; IE9+
+          transform: skew(@x, @y);
 }
 .translate(@x; @y) {
   -webkit-transform: translate(@x, @y);
       -ms-transform: translate(@x, @y); // IE9 only
           transform: translate(@x, @y);
 }
-.skew(@x; @y) {
-  -webkit-transform: skew(@x, @y);
-      -ms-transform: skewX(@x) skewY(@y); // See https://github.com/twbs/bootstrap/issues/4885; IE9+
-          transform: skew(@x, @y);
-}
 .translate3d(@x; @y; @z) {
   -webkit-transform: translate3d(@x, @y, @z);
           transform: translate3d(@x, @y, @z);
 }
-
+.rotate(@degrees) {
+  -webkit-transform: rotate(@degrees);
+      -ms-transform: rotate(@degrees); // IE9 only
+          transform: rotate(@degrees);
+}
 .rotateX(@degrees) {
   -webkit-transform: rotateX(@degrees);
       -ms-transform: rotateX(@degrees); // IE9 only
@@ -230,6 +247,10 @@
   -webkit-animation-direction: @direction;
           animation-direction: @direction;
 }
+.animation-fill-mode(@fill-mode) {
+  -webkit-animation-fill-mode: @fill-mode;
+          animation-fill-mode: @fill-mode;
+}
 
 // Backface visibility
 // Prevent browsers from flickering when using CSS 3D transforms.
@@ -253,7 +274,6 @@
   -webkit-user-select: @select;
      -moz-user-select: @select;
       -ms-user-select: @select; // IE10+
-       -o-user-select: @select;
           user-select: @select;
 }
 
@@ -360,7 +380,8 @@
 
 // Retina images
 //
-// Short retina mixin for setting background-image and -size
+// Short retina mixin for setting background-image and -size. Note that the
+// spelling of `min--moz-device-pixel-ratio` is intentional.
 
 .img-retina(@file-1x; @file-2x; @width-1x; @height-1x) {
   background-image: url("@{file-1x}");
@@ -412,12 +433,12 @@
     background-color: @heading-bg-color;
     border-color: @heading-border;
 
-    + .panel-collapse .panel-body {
+    + .panel-collapse > .panel-body {
       border-top-color: @border;
     }
   }
   & > .panel-footer {
-    + .panel-collapse .panel-body {
+    + .panel-collapse > .panel-body {
       border-bottom-color: @border;
     }
   }
@@ -629,10 +650,7 @@
 }
 
 .responsive-invisibility() {
-    &,
-  tr&,
-  th&,
-  td& { display: none !important; }
+  display: none !important;
 }
 
 
@@ -665,19 +683,13 @@
   padding-right: (@gutter / 2);
 }
 .make-xs-column-offset(@columns) {
-  @media (min-width: @screen-xs-min) {
-    margin-left: percentage((@columns / @grid-columns));
-  }
+  margin-left: percentage((@columns / @grid-columns));
 }
 .make-xs-column-push(@columns) {
-  @media (min-width: @screen-xs-min) {
-    left: percentage((@columns / @grid-columns));
-  }
+  left: percentage((@columns / @grid-columns));
 }
 .make-xs-column-pull(@columns) {
-  @media (min-width: @screen-xs-min) {
-    right: percentage((@columns / @grid-columns));
-  }
+  right: percentage((@columns / @grid-columns));
 }
 
 
@@ -796,7 +808,7 @@
   .col(1); // kickstart it
 }
 
-.make-grid-columns-float(@class) {
+.float-grid-columns(@class) {
   .col(@index) when (@index = 1) { // initial
     @item: ~".col-@{class}-@{index}";
     .col((@index + 1), @item);
@@ -813,34 +825,52 @@
   .col(1); // kickstart it
 }
 
-.calc-grid(@index, @class, @type) when (@type = width) and (@index > 0) {
+.calc-grid-column(@index, @class, @type) when (@type = width) and (@index > 0) {
   .col-@{class}-@{index} {
     width: percentage((@index / @grid-columns));
   }
 }
-.calc-grid(@index, @class, @type) when (@type = push) {
+.calc-grid-column(@index, @class, @type) when (@type = push) and (@index > 0) {
   .col-@{class}-push-@{index} {
     left: percentage((@index / @grid-columns));
   }
 }
-.calc-grid(@index, @class, @type) when (@type = pull) {
+.calc-grid-column(@index, @class, @type) when (@type = push) and (@index = 0) {
+  .col-@{class}-push-0 {
+    left: auto;
+  }
+}
+.calc-grid-column(@index, @class, @type) when (@type = pull) and (@index > 0) {
   .col-@{class}-pull-@{index} {
     right: percentage((@index / @grid-columns));
   }
 }
-.calc-grid(@index, @class, @type) when (@type = offset) {
+.calc-grid-column(@index, @class, @type) when (@type = pull) and (@index = 0) {
+  .col-@{class}-pull-0 {
+    right: auto;
+  }
+}
+.calc-grid-column(@index, @class, @type) when (@type = offset) {
   .col-@{class}-offset-@{index} {
     margin-left: percentage((@index / @grid-columns));
   }
 }
 
 // Basic looping in LESS
-.make-grid(@index, @class, @type) when (@index >= 0) {
-  .calc-grid(@index, @class, @type);
+.loop-grid-columns(@index, @class, @type) when (@index >= 0) {
+  .calc-grid-column(@index, @class, @type);
   // next iteration
-  .make-grid((@index - 1), @class, @type);
+  .loop-grid-columns((@index - 1), @class, @type);
 }
 
+// Create grid for specific class
+.make-grid(@class) {
+  .float-grid-columns(@class);
+  .loop-grid-columns(@grid-columns, @class, width);
+  .loop-grid-columns(@grid-columns, @class, pull);
+  .loop-grid-columns(@grid-columns, @class, push);
+  .loop-grid-columns(@grid-columns, @class, offset);
+}
 
 // Form validation states
 //
diff --git a/less/modals.less b/less/modals.less
index e7f3d726e..0ba977e6d 100644
--- a/less/modals.less
+++ b/less/modals.less
@@ -98,8 +98,7 @@
 
 // Footer (for actions)
 .modal-footer {
-  margin-top: 15px;
-  padding: (@modal-inner-padding - 1) @modal-inner-padding @modal-inner-padding;
+  padding: @modal-inner-padding;
   text-align: right; // right align buttons
   border-top: 1px solid @modal-footer-border-color;
   &:extend(.clearfix all); // clear it in case folks use .pull-* classes on buttons
@@ -121,7 +120,6 @@
 
 // Scale up the modal
 @media (min-width: @screen-sm-min) {
-
   // Automatically set modal's width for larger viewports
   .modal-dialog {
     width: @modal-md;
@@ -133,6 +131,8 @@
 
   // Modal sizes
   .modal-sm { width: @modal-sm; }
-  .modal-lg { width: @modal-lg; }
+}
 
+@media (min-width: @screen-md-min) {
+  .modal-lg { width: @modal-lg; }
 }
diff --git a/less/navbar.less b/less/navbar.less
index ddb67b9f7..34897e225 100644
--- a/less/navbar.less
+++ b/less/navbar.less
@@ -155,7 +155,7 @@
   padding: @navbar-padding-vertical @navbar-padding-horizontal;
   font-size: @font-size-large;
   line-height: @line-height-computed;
-  height: @line-height-computed;
+  height: @navbar-height;
 
   &:hover,
   &:focus {
@@ -492,6 +492,20 @@
     }
   }
 
+  .btn-link {
+    color: @navbar-default-link-color;
+    &:hover,
+    &:focus {
+      color: @navbar-default-link-hover-color;
+    }
+    &[disabled],
+    fieldset[disabled] & {
+      &:hover,
+      &:focus {
+        color: @navbar-default-link-disabled-color;
+      }
+    }
+  }
 }
 
 // Inverse navbar
@@ -613,4 +627,18 @@
     }
   }
 
+  .btn-link {
+    color: @navbar-inverse-link-color;
+    &:hover,
+    &:focus {
+      color: @navbar-inverse-link-hover-color;
+    }
+    &[disabled],
+    fieldset[disabled] & {
+      &:hover,
+      &:focus {
+        color: @navbar-inverse-link-disabled-color;
+      }
+    }
+  }
 }
diff --git a/less/panels.less b/less/panels.less
index e677d2b29..bb3593c87 100644
--- a/less/panels.less
+++ b/less/panels.less
@@ -18,6 +18,37 @@
   &:extend(.clearfix all);
 }
 
+// Optional heading
+.panel-heading {
+  padding: @panel-heading-padding;
+  border-bottom: 1px solid transparent;
+  .border-top-radius((@panel-border-radius - 1));
+
+  > .dropdown .dropdown-toggle {
+    color: inherit;
+  }
+}
+
+// Within heading, strip any `h*` tag of its default margins for spacing.
+.panel-title {
+  margin-top: 0;
+  margin-bottom: 0;
+  font-size: ceil((@font-size-base * 1.125));
+  color: inherit;
+
+  > a {
+    color: inherit;
+  }
+}
+
+// Optional footer (stays gray in every modifier class)
+.panel-footer {
+  padding: @panel-footer-padding;
+  background-color: @panel-footer-bg;
+  border-top: 1px solid @panel-inner-border;
+  .border-bottom-radius((@panel-border-radius - 1));
+}
+
 
 // List groups in panels
 //
@@ -27,25 +58,23 @@
 .panel {
   > .list-group {
     margin-bottom: 0;
+
     .list-group-item {
       border-width: 1px 0;
       border-radius: 0;
-      &:first-child {
-        border-top: 0;
-      }
-      &:last-child {
-        border-bottom: 0;
-      }
     }
+
     // Add border top radius for first one
     &:first-child {
       .list-group-item:first-child {
+        border-top: 0;
         .border-top-radius((@panel-border-radius - 1));
       }
     }
     // Add border bottom radius for last one
     &:last-child {
       .list-group-item:last-child {
+        border-bottom: 0;
         .border-bottom-radius((@panel-border-radius - 1));
       }
     }
@@ -72,6 +101,8 @@
   // Add border top radius for first one
   > .table:first-child,
   > .table-responsive:first-child > .table:first-child {
+    .border-top-radius((@panel-border-radius - 1));
+
     > thead:first-child,
     > tbody:first-child {
       > tr:first-child {
@@ -89,6 +120,8 @@
   // Add border bottom radius for last one
   > .table:last-child,
   > .table-responsive:last-child > .table:last-child {
+    .border-bottom-radius((@panel-border-radius - 1));
+
     > tbody:last-child,
     > tfoot:last-child {
       > tr:last-child {
@@ -126,12 +159,22 @@
         > td:last-child {
           border-right: 0;
         }
-        &:first-child > th,
-        &:first-child > td {
-          border-top: 0;
+      }
+    }
+    > thead,
+    > tbody {
+      > tr:first-child {
+        > td,
+        > th {
+          border-bottom: 0;
         }
-        &:last-child > th,
-        &:last-child > td {
+      }
+    }
+    > tbody,
+    > tfoot {
+      > tr:last-child {
+        > td,
+        > th {
           border-bottom: 0;
         }
       }
@@ -144,38 +187,6 @@
 }
 
 
-// Optional heading
-.panel-heading {
-  padding: 10px 15px;
-  border-bottom: 1px solid transparent;
-  .border-top-radius((@panel-border-radius - 1));
-
-  > .dropdown .dropdown-toggle {
-    color: inherit;
-  }
-}
-
-// Within heading, strip any `h*` tag of its default margins for spacing.
-.panel-title {
-  margin-top: 0;
-  margin-bottom: 0;
-  font-size: ceil((@font-size-base * 1.125));
-  color: inherit;
-
-  > a {
-    color: inherit;
-  }
-}
-
-// Optional footer (stays gray in every modifier class)
-.panel-footer {
-  padding: 10px 15px;
-  background-color: @panel-footer-bg;
-  border-top: 1px solid @panel-inner-border;
-  .border-bottom-radius((@panel-border-radius - 1));
-}
-
-
 // Collapsable panels (aka, accordion)
 //
 // Wrap a series of panels in `.panel-group` to turn them into an accordion with
diff --git a/less/popovers.less b/less/popovers.less
index 345bb1a31..696d74c7d 100644
--- a/less/popovers.less
+++ b/less/popovers.less
@@ -23,10 +23,10 @@
   white-space: normal;
 
   // Offset the popover to account for the popover arrow
-  &.top     { margin-top: -10px; }
-  &.right   { margin-left: 10px; }
-  &.bottom  { margin-top: 10px; }
-  &.left    { margin-left: -10px; }
+  &.top     { margin-top: -@popover-arrow-width; }
+  &.right   { margin-left: @popover-arrow-width; }
+  &.bottom  { margin-top: @popover-arrow-width; }
+  &.left    { margin-left: -@popover-arrow-width; }
 }
 
 .popover-title {
@@ -48,7 +48,7 @@
 //
 // .arrow is outer, .arrow:after is inner
 
-.popover .arrow {
+.popover > .arrow {
   &,
   &:after {
     position: absolute;
@@ -59,16 +59,16 @@
     border-style: solid;
   }
 }
-.popover .arrow {
+.popover > .arrow {
   border-width: @popover-arrow-outer-width;
 }
-.popover .arrow:after {
+.popover > .arrow:after {
   border-width: @popover-arrow-width;
   content: "";
 }
 
 .popover {
-  &.top .arrow {
+  &.top > .arrow {
     left: 50%;
     margin-left: -@popover-arrow-outer-width;
     border-bottom-width: 0;
@@ -83,7 +83,7 @@
       border-top-color: @popover-arrow-color;
     }
   }
-  &.right .arrow {
+  &.right > .arrow {
     top: 50%;
     left: -@popover-arrow-outer-width;
     margin-top: -@popover-arrow-outer-width;
@@ -98,7 +98,7 @@
       border-right-color: @popover-arrow-color;
     }
   }
-  &.bottom .arrow {
+  &.bottom > .arrow {
     left: 50%;
     margin-left: -@popover-arrow-outer-width;
     border-top-width: 0;
@@ -114,7 +114,7 @@
     }
   }
 
-  &.left .arrow {
+  &.left > .arrow {
     top: 50%;
     right: -@popover-arrow-outer-width;
     margin-top: -@popover-arrow-outer-width;
diff --git a/less/progress-bars.less b/less/progress-bars.less
index 76c87be17..659821852 100644
--- a/less/progress-bars.less
+++ b/less/progress-bars.less
@@ -58,6 +58,22 @@
   .animation(progress-bar-stripes 2s linear infinite);
 }
 
+// Account for lower percentages
+.progress-bar {
+  &[aria-valuenow="1"],
+  &[aria-valuenow="2"] {
+    min-width: 30px;
+  }
+
+  &[aria-valuenow="0"] {
+    color: @gray-light;
+    min-width: 30px;
+    background-color: transparent;
+    background-image: none;
+    box-shadow: none;
+  }
+}
+
 
 
 // Variations
diff --git a/less/responsive-utilities.less b/less/responsive-utilities.less
index 5a31816af..027a26410 100644
--- a/less/responsive-utilities.less
+++ b/less/responsive-utilities.less
@@ -23,30 +23,29 @@
 
 
 // Visibility utilities
-.visible-xs {
+.visible-xs,
+.visible-sm,
+.visible-md,
+.visible-lg {
   .responsive-invisibility();
+}
 
+.visible-xs {
   @media (max-width: @screen-xs-max) {
     .responsive-visibility();
   }
 }
 .visible-sm {
-  .responsive-invisibility();
-
   @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) {
     .responsive-visibility();
   }
 }
 .visible-md {
-  .responsive-invisibility();
-
   @media (min-width: @screen-md-min) and (max-width: @screen-md-max) {
     .responsive-visibility();
   }
 }
 .visible-lg {
-  .responsive-invisibility();
-
   @media (min-width: @screen-lg-min) {
     .responsive-visibility();
   }
diff --git a/less/tables.less b/less/tables.less
index c41989c04..555d7924c 100644
--- a/less/tables.less
+++ b/less/tables.less
@@ -168,8 +168,8 @@ table {
 // by enabling horizontal scrolling. Only applies <768px. Everything above that
 // will display normally.
 
-@media (max-width: @screen-xs-max) {
-  .table-responsive {
+.table-responsive {
+  @media screen and (max-width: @screen-xs-max) {
     width: 100%;
     margin-bottom: (@line-height-computed * 0.75);
     overflow-y: hidden;
diff --git a/less/thumbnails.less b/less/thumbnails.less
index 11aa283a0..c428920bc 100644
--- a/less/thumbnails.less
+++ b/less/thumbnails.less
@@ -16,7 +16,7 @@
 
   > img,
   a > img {
-    .img-responsive();
+    &:extend(.img-responsive);
     margin-left: auto;
     margin-right: auto;
   }
diff --git a/less/type.less b/less/type.less
index a55730dfe..c63e5d9f2 100644
--- a/less/type.less
+++ b/less/type.less
@@ -141,7 +141,7 @@ cite    { font-style: normal; }
 
 
 // Lists
-// --------------------------------------------------
+// -------------------------
 
 // Unordered and Ordered lists
 ul,
@@ -165,15 +165,12 @@ ol {
 // Inline turns list items into inline-block
 .list-inline {
   .list-unstyled();
+  margin-left: -5px;
 
   > li {
     display: inline-block;
     padding-left: 5px;
     padding-right: 5px;
-
-    &:first-child {
-      padding-left: 0;
-    }
   }
 }
 
@@ -198,8 +195,12 @@ dd {
 // Defaults to being stacked without any of the below styles applied, until the
 // grid breakpoint is reached (default of ~768px).
 
-@media (min-width: @grid-float-breakpoint) {
-  .dl-horizontal {
+.dl-horizontal {
+  dd {
+    &:extend(.clearfix all); // Clear the floated `dt` if an empty `dd` is present
+  }
+
+  @media (min-width: @grid-float-breakpoint) {
     dt {
       float: left;
       width: (@component-offset-horizontal - 20);
@@ -209,13 +210,13 @@ dd {
     }
     dd {
       margin-left: @component-offset-horizontal;
-      &:extend(.clearfix all); // Clear the floated `dt` if an empty `dd` is present
     }
   }
 }
 
-// MISC
-// ----
+
+// Misc
+// -------------------------
 
 // Abbreviations and acronyms
 abbr[title],
@@ -233,7 +234,7 @@ abbr[data-original-title] {
 blockquote {
   padding: (@line-height-computed / 2) @line-height-computed;
   margin: 0 0 @line-height-computed;
-  font-size: (@font-size-base * 1.25);
+  font-size: @blockquote-font-size;
   border-left: 5px solid @blockquote-border-color;
 
   p,
diff --git a/less/variables.less b/less/variables.less
index 814f45351..823ef859c 100644
--- a/less/variables.less
+++ b/less/variables.less
@@ -74,7 +74,7 @@
 
 @icon-font-path:          "../fonts/";
 @icon-font-name:          "glyphicons-halflings-regular";
-@icon-font-svg-id:				"glyphicons_halflingsregular";
+@icon-font-svg-id:        "glyphicons_halflingsregular";
 
 //== Components
 //
@@ -257,7 +257,7 @@
 //## Define the breakpoints at which your layout will change, adapting to different screen sizes.
 
 // Extra small screen / phone
-// Note: Deprecated @screen-xs and @screen-phone as of v3.0.1
+// Note: Deprecated @screen-xs and @screen-phone as of v3.0.1, and @screen-xs-min as of v3.2.0
 @screen-xs:                  480px;
 @screen-xs-min:              @screen-xs;
 @screen-phone:               @screen-xs-min;
@@ -301,6 +301,26 @@
 @grid-float-breakpoint-max: (@grid-float-breakpoint - 1);
 
 
+//== Container sizes
+//
+//## Define the maximum width of `.container` for different screen sizes.
+
+// Small screen / tablet
+@container-tablet:             ((720px + @grid-gutter-width));
+//** For `@screen-sm-min` and up.
+@container-sm:                 @container-tablet;
+
+// Medium screen / desktop
+@container-desktop:            ((940px + @grid-gutter-width));
+//** For `@screen-md-min` and up.
+@container-md:                 @container-desktop;
+
+// Large screen / wide desktop
+@container-large-desktop:      ((1140px + @grid-gutter-width));
+//** For `@screen-lg-min` and up.
+@container-lg:                 @container-large-desktop;
+
+
 //== Navbar
 //
 //##
@@ -505,9 +525,9 @@
 //** Popover outer arrow width
 @popover-arrow-outer-width:           (@popover-arrow-width + 1);
 //** Popover outer arrow color
-@popover-arrow-outer-color:           rgba(0,0,0,.25);
+@popover-arrow-outer-color:           fadein(@popover-border-color, 5%);
 //** Popover outer arrow fallback color
-@popover-arrow-outer-fallback-color:  #999;
+@popover-arrow-outer-fallback-color:  darken(@popover-fallback-border-color, 20%);
 
 
 //== Labels
@@ -538,7 +558,7 @@
 //##
 
 //** Padding applied to the modal body
-@modal-inner-padding:         20px;
+@modal-inner-padding:         15px;
 
 //** Padding applied to the modal title
 @modal-title-padding:         15px;
@@ -634,9 +654,9 @@
 @list-group-active-text-color:  lighten(@list-group-active-bg, 40%);
 
 //** Text color of disabled list elements
-@list-group-disabled-color:     @grey-light; // Or something else you want
+@list-group-disabled-color:     @gray-light;
 //** Background color of disabled list elements
-@list-group-disabled-bg:        @grey-ligher; // Or something else you want
+@list-group-disabled-bg:        @gray-lighter;
 //** Border color of disabled list elements
 @list-group-disabled-border:    #eee; // Or something else you want
 @list-group-disabled-text-color: lighten(@list-group-disabled-bg, 40%); // Or something else you want
@@ -651,6 +671,8 @@
 
 @panel-bg:                    #fff;
 @panel-body-padding:          15px;
+@panel-heading-padding:       10px 15px;
+@panel-footer-padding:        @panel-heading-padding;
 @panel-border-radius:         @border-radius-base;
 
 //** Border color for elements within panels
@@ -798,6 +820,8 @@
 @headings-small-color:        @gray-light;
 //** Blockquote small color
 @blockquote-small-color:      @gray-light;
+//** Blockquote font size
+@blockquote-font-size:        (@font-size-base * 1.25);
 //** Blockquote border color
 @blockquote-border-color:     @gray-lighter;
 //** Page header border color
@@ -813,23 +837,3 @@
 
 //** Horizontal offset for forms and lists.
 @component-offset-horizontal: 180px;
-
-
-//== Container sizes
-//
-//## Define the maximum width of `.container` for different screen sizes.
-
-// Small screen / tablet
-@container-tablet:             ((720px + @grid-gutter-width));
-//** For `@screen-sm-min` and up.
-@container-sm:                 @container-tablet;
-
-// Medium screen / desktop
-@container-desktop:            ((940px + @grid-gutter-width));
-//** For `@screen-md-min` and up.
-@container-md:                 @container-desktop;
-
-// Large screen / wide desktop
-@container-large-desktop:      ((1140px + @grid-gutter-width));
-//** For `@screen-lg-min` and up.
-@container-lg:                 @container-large-desktop;