Merge branch 'master' into v4

Conflicts:
	Gruntfile.js
	_config.yml
	dist/css/bootstrap-theme.css
	dist/css/bootstrap-theme.min.css
	dist/css/bootstrap.css
	dist/css/bootstrap.css.map
	dist/css/bootstrap.min.css
	dist/fonts/glyphicons-halflings-regular.eot
	dist/fonts/glyphicons-halflings-regular.svg
	dist/fonts/glyphicons-halflings-regular.ttf
	dist/fonts/glyphicons-halflings-regular.woff
	docs/_data/glyphicons.yml
	docs/_includes/components/alerts.html
	docs/_includes/components/badges.html
	docs/_includes/components/button-dropdowns.html
	docs/_includes/components/button-groups.html
	docs/_includes/components/dropdowns.html
	docs/_includes/components/glyphicons.html
	docs/_includes/components/input-groups.html
	docs/_includes/components/labels.html
	docs/_includes/components/media.html
	docs/_includes/components/navbar.html
	docs/_includes/components/navs.html
	docs/_includes/components/pagination.html
	docs/_includes/components/panels.html
	docs/_includes/components/progress-bars.html
	docs/_includes/css/buttons.html
	docs/_includes/css/forms.html
	docs/_includes/css/grid.html
	docs/_includes/css/helpers.html
	docs/_includes/css/images.html
	docs/_includes/css/less.html
	docs/_includes/css/responsive-utilities.html
	docs/_includes/css/sass.html
	docs/_includes/css/tables.html
	docs/_includes/css/type.html
	docs/_includes/getting-started/accessibility.html
	docs/_includes/getting-started/browser-device-support.html
	docs/_includes/getting-started/community.html
	docs/_includes/getting-started/download.html
	docs/_includes/getting-started/examples.html
	docs/_includes/getting-started/whats-included.html
	docs/_includes/js/affix.html
	docs/_includes/js/alerts.html
	docs/_includes/js/buttons.html
	docs/_includes/js/carousel.html
	docs/_includes/js/collapse.html
	docs/_includes/js/dropdowns.html
	docs/_includes/js/modal.html
	docs/_includes/js/overview.html
	docs/_includes/js/tabs.html
	docs/_includes/nav/components.html
	docs/_includes/nav/css.html
	docs/_includes/nav/javascript.html
	docs/_includes/nav/main.html
	docs/about.html
	docs/assets/css/docs.min.css
	docs/assets/js/customize.min.js
	docs/assets/js/raw-files.min.js
	docs/dist/css/bootstrap-theme.css
	docs/dist/css/bootstrap-theme.min.css
	docs/dist/css/bootstrap.css
	docs/dist/css/bootstrap.css.map
	docs/dist/css/bootstrap.min.css
	docs/dist/fonts/glyphicons-halflings-regular.eot
	docs/dist/fonts/glyphicons-halflings-regular.svg
	docs/dist/fonts/glyphicons-halflings-regular.ttf
	docs/dist/fonts/glyphicons-halflings-regular.woff
	docs/examples/carousel/index.html
	docs/examples/navbar-fixed-top/index.html
	docs/examples/navbar-static-top/index.html
	docs/examples/navbar/index.html
	docs/examples/non-responsive/index.html
	docs/examples/non-responsive/non-responsive.css
	docs/examples/sticky-footer-navbar/index.html
	docs/examples/theme/index.html
	fonts/glyphicons-halflings-regular.eot
	fonts/glyphicons-halflings-regular.svg
	fonts/glyphicons-halflings-regular.ttf
	fonts/glyphicons-halflings-regular.woff
	less/_carousel.less
	less/_forms.less
	less/glyphicons.less

16 files changed, 255 insertions, 34 deletions

diff --git a/js/affix.js b/js/affix.js
index e4efa20c6..04f389e2c 100644
--- a/js/affix.js
+++ b/js/affix.js
@@ -1,5 +1,5 @@
 /* ========================================================================
- * Bootstrap: affix.js v3.3.0
+ * Bootstrap: affix.js v3.3.1
  * http://getbootstrap.com/javascript/#affix
  * ========================================================================
  * Copyright 2011-2014 Twitter, Inc.
@@ -28,7 +28,7 @@
     this.checkPosition()
   }
 
-  Affix.VERSION  = '3.3.0'
+  Affix.VERSION  = '3.3.1'
 
   Affix.RESET    = 'affix affix-top affix-bottom'
 
@@ -53,7 +53,7 @@
     var colliderTop    = initializing ? scrollTop : position.top
     var colliderHeight = initializing ? targetHeight : height
 
-    if (offsetTop != null && colliderTop <= offsetTop) return 'top'
+    if (offsetTop != null && scrollTop <= offsetTop) return 'top'
     if (offsetBottom != null && (colliderTop + colliderHeight >= scrollHeight - offsetBottom)) return 'bottom'
 
     return false
diff --git a/js/alert.js b/js/alert.js
index d47d85fc5..7b775dd0a 100644
--- a/js/alert.js
+++ b/js/alert.js
@@ -1,5 +1,5 @@
 /* ========================================================================
- * Bootstrap: alert.js v3.3.0
+ * Bootstrap: alert.js v3.3.1
  * http://getbootstrap.com/javascript/#alerts
  * ========================================================================
  * Copyright 2011-2014 Twitter, Inc.
@@ -18,7 +18,7 @@
     $(el).on('click', dismiss, this.close)
   }
 
-  Alert.VERSION = '3.3.0'
+  Alert.VERSION = '3.3.1'
 
   Alert.TRANSITION_DURATION = 150
 
diff --git a/js/button.js b/js/button.js
index 403829490..7b1e134b2 100644
--- a/js/button.js
+++ b/js/button.js
@@ -1,5 +1,5 @@
 /* ========================================================================
- * Bootstrap: button.js v3.3.0
+ * Bootstrap: button.js v3.3.1
  * http://getbootstrap.com/javascript/#buttons
  * ========================================================================
  * Copyright 2011-2014 Twitter, Inc.
@@ -19,7 +19,7 @@
     this.isLoading = false
   }
 
-  Button.VERSION  = '3.3.0'
+  Button.VERSION  = '3.3.1'
 
   Button.DEFAULTS = {
     loadingText: 'loading...'
diff --git a/js/carousel.js b/js/carousel.js
index 82106d278..99a077c10 100644
--- a/js/carousel.js
+++ b/js/carousel.js
@@ -1,5 +1,5 @@
 /* ========================================================================
- * Bootstrap: carousel.js v3.3.0
+ * Bootstrap: carousel.js v3.3.1
  * http://getbootstrap.com/javascript/#carousel
  * ========================================================================
  * Copyright 2011-2014 Twitter, Inc.
@@ -30,7 +30,7 @@
       .on('mouseleave.bs.carousel', $.proxy(this.cycle, this))
   }
 
-  Carousel.VERSION  = '3.3.0'
+  Carousel.VERSION  = '3.3.1'
 
   Carousel.TRANSITION_DURATION = 600
 
@@ -70,8 +70,11 @@
   }
 
   Carousel.prototype.getItemForDirection = function (direction, active) {
-    var delta = direction == 'prev' ? -1 : 1
     var activeIndex = this.getItemIndex(active)
+    var willWrap = (direction == 'prev' && activeIndex === 0)
+                || (direction == 'next' && activeIndex == (this.$items.length - 1))
+    if (willWrap && !this.options.wrap) return active
+    var delta = direction == 'prev' ? -1 : 1
     var itemIndex = (activeIndex + delta) % this.$items.length
     return this.$items.eq(itemIndex)
   }
@@ -116,14 +119,8 @@
     var $next     = next || this.getItemForDirection(type, $active)
     var isCycling = this.interval
     var direction = type == 'next' ? 'left' : 'right'
-    var fallback  = type == 'next' ? 'first' : 'last'
     var that      = this
 
-    if (!$next.length) {
-      if (!this.options.wrap) return
-      $next = this.$element.find('.item')[fallback]()
-    }
-
     if ($next.hasClass('active')) return (this.sliding = false)
 
     var relatedTarget = $next[0]
diff --git a/js/collapse.js b/js/collapse.js
index 4f8596444..a2ede5914 100644
--- a/js/collapse.js
+++ b/js/collapse.js
@@ -1,5 +1,5 @@
 /* ========================================================================
- * Bootstrap: collapse.js v3.3.0
+ * Bootstrap: collapse.js v3.3.1
  * http://getbootstrap.com/javascript/#collapse
  * ========================================================================
  * Copyright 2011-2014 Twitter, Inc.
@@ -28,7 +28,7 @@
     if (this.options.toggle) this.toggle()
   }
 
-  Collapse.VERSION  = '3.3.0'
+  Collapse.VERSION  = '3.3.1'
 
   Collapse.TRANSITION_DURATION = 350
 
@@ -46,7 +46,7 @@
     if (this.transitioning || this.$element.hasClass('in')) return
 
     var activesData
-    var actives = this.$parent && this.$parent.find('> .panel').children('.in, .collapsing')
+    var actives = this.$parent && this.$parent.children('.panel').children('.in, .collapsing')
 
     if (actives && actives.length) {
       activesData = actives.data('bs.collapse')
diff --git a/js/dropdown.js b/js/dropdown.js
index ae192e570..69a40f681 100644
--- a/js/dropdown.js
+++ b/js/dropdown.js
@@ -1,5 +1,5 @@
 /* ========================================================================
- * Bootstrap: dropdown.js v3.3.0
+ * Bootstrap: dropdown.js v3.3.1
  * http://getbootstrap.com/javascript/#dropdowns
  * ========================================================================
  * Copyright 2011-2014 Twitter, Inc.
@@ -19,7 +19,7 @@
     $(element).on('click.bs.dropdown', this.toggle)
   }
 
-  Dropdown.VERSION = '3.3.0'
+  Dropdown.VERSION = '3.3.1'
 
   Dropdown.prototype.toggle = function (e) {
     var $this = $(this)
@@ -55,7 +55,7 @@
   }
 
   Dropdown.prototype.keydown = function (e) {
-    if (!/(38|40|27|32)/.test(e.which)) return
+    if (!/(38|40|27|32)/.test(e.which) || /input|textarea/i.test(e.target.tagName)) return
 
     var $this = $(this)
 
diff --git a/js/modal.js b/js/modal.js
index ed3f0293f..93891aa4e 100644
--- a/js/modal.js
+++ b/js/modal.js
@@ -1,5 +1,5 @@
 /* ========================================================================
- * Bootstrap: modal.js v3.3.0
+ * Bootstrap: modal.js v3.3.1
  * http://getbootstrap.com/javascript/#modals
  * ========================================================================
  * Copyright 2011-2014 Twitter, Inc.
@@ -30,7 +30,7 @@
     }
   }
 
-  Modal.VERSION  = '3.3.0'
+  Modal.VERSION  = '3.3.1'
 
   Modal.TRANSITION_DURATION = 300
   Modal.BACKDROP_TRANSITION_DURATION = 150
diff --git a/js/popover.js b/js/popover.js
index 354805917..db272bdee 100644
--- a/js/popover.js
+++ b/js/popover.js
@@ -1,5 +1,5 @@
 /* ========================================================================
- * Bootstrap: popover.js v3.3.0
+ * Bootstrap: popover.js v3.3.1
  * http://getbootstrap.com/javascript/#popovers
  * ========================================================================
  * Copyright 2011-2014 Twitter, Inc.
@@ -19,7 +19,7 @@
 
   if (!$.fn.tooltip) throw new Error('Popover requires tooltip.js')
 
-  Popover.VERSION  = '3.3.0'
+  Popover.VERSION  = '3.3.1'
 
   Popover.DEFAULTS = $.extend({}, $.fn.tooltip.Constructor.DEFAULTS, {
     placement: 'right',
diff --git a/js/scrollspy.js b/js/scrollspy.js
index 973021a93..c468262f3 100644
--- a/js/scrollspy.js
+++ b/js/scrollspy.js
@@ -1,5 +1,5 @@
 /* ========================================================================
- * Bootstrap: scrollspy.js v3.3.0
+ * Bootstrap: scrollspy.js v3.3.1
  * http://getbootstrap.com/javascript/#scrollspy
  * ========================================================================
  * Copyright 2011-2014 Twitter, Inc.
@@ -30,7 +30,7 @@
     this.process()
   }
 
-  ScrollSpy.VERSION  = '3.3.0'
+  ScrollSpy.VERSION  = '3.3.1'
 
   ScrollSpy.DEFAULTS = {
     offset: 10
diff --git a/js/tab.js b/js/tab.js
index 7a6816989..d59827f2e 100644
--- a/js/tab.js
+++ b/js/tab.js
@@ -1,5 +1,5 @@
 /* ========================================================================
- * Bootstrap: tab.js v3.3.0
+ * Bootstrap: tab.js v3.3.1
  * http://getbootstrap.com/javascript/#tabs
  * ========================================================================
  * Copyright 2011-2014 Twitter, Inc.
@@ -17,7 +17,7 @@
     this.element = $(element)
   }
 
-  Tab.VERSION = '3.3.0'
+  Tab.VERSION = '3.3.1'
 
   Tab.TRANSITION_DURATION = 150
 
diff --git a/js/tests/unit/affix.js b/js/tests/unit/affix.js
index ef6ef74b9..3152d8d2e 100644
--- a/js/tests/unit/affix.js
+++ b/js/tests/unit/affix.js
@@ -68,4 +68,34 @@ $(function () {
       }, 16) // for testing in a browser
     }, 0)
   })
+
+  test('should affix-top when scrolling up to offset when parent has padding', function () {
+    stop()
+
+    var templateHTML = '<div id="padding-offset" style="padding-top: 20px;">'
+        + '<div id="affixTopTarget">'
+        + '<p>Testing affix-top class is added</p>'
+        + '</div>'
+        + '<div style="height: 1000px; display: block;"/>'
+        + '</div>'
+    $(templateHTML).appendTo(document.body)
+
+    $('#affixTopTarget')
+      .bootstrapAffix({
+        offset: { top: 120, bottom: 0 }
+      })
+      .on('affixed-top.bs.affix', function () {
+        ok($('#affixTopTarget').hasClass('affix-top'), 'affix-top class applied')
+        $('#padding-offset').remove()
+        start()
+      })
+
+    setTimeout(function () {
+      window.scrollTo(0, document.body.scrollHeight)
+
+      setTimeout(function () {
+        window.scroll(0, 119)
+      }, 250)
+    }, 250)
+  })
 })
diff --git a/js/tests/unit/carousel.js b/js/tests/unit/carousel.js
index 5998abe6a..008b72082 100644
--- a/js/tests/unit/carousel.js
+++ b/js/tests/unit/carousel.js
@@ -541,4 +541,157 @@ $(function () {
       strictEqual(type in $._data($template[0], 'events'), !isMobile, 'does' + (isMobile ? ' not' : '') + ' listen for ' + type + ' events')
     })
   })
+
+  test('should wrap around from end to start when wrap option is true', function () {
+    var carouselHTML = '<div id="carousel-example-generic" class="carousel slide" data-wrap="true">'
+        + '<ol class="carousel-indicators">'
+        + '<li data-target="#carousel-example-generic" data-slide-to="0" class="active"/>'
+        + '<li data-target="#carousel-example-generic" data-slide-to="1"/>'
+        + '<li data-target="#carousel-example-generic" data-slide-to="2"/>'
+        + '</ol>'
+        + '<div class="carousel-inner">'
+        + '<div class="item active" id="one">'
+        + '<div class="carousel-caption"/>'
+        + '</div>'
+        + '<div class="item" id="two">'
+        + '<div class="carousel-caption"/>'
+        + '</div>'
+        + '<div class="item" id="three">'
+        + '<div class="carousel-caption"/>'
+        + '</div>'
+        + '</div>'
+        + '<a class="left carousel-control" href="#carousel-example-generic" data-slide="prev"/>'
+        + '<a class="right carousel-control" href="#carousel-example-generic" data-slide="next"/>'
+        + '</div>'
+    var $carousel = $(carouselHTML)
+    var getActiveId = function () { return $carousel.find('.item.active').attr('id') }
+
+    stop()
+
+    $carousel
+      .one('slid.bs.carousel', function () {
+        strictEqual(getActiveId(), 'two', 'carousel slid from 1st to 2nd slide')
+        $carousel
+          .one('slid.bs.carousel', function () {
+            strictEqual(getActiveId(), 'three', 'carousel slid from 2nd to 3rd slide')
+            $carousel
+              .one('slid.bs.carousel', function () {
+                strictEqual(getActiveId(), 'one', 'carousel wrapped around and slid from 3rd to 1st slide')
+                start()
+              })
+              .bootstrapCarousel('next')
+          })
+          .bootstrapCarousel('next')
+      })
+      .bootstrapCarousel('next')
+  })
+
+  test('should wrap around from start to end when wrap option is true', function () {
+    var carouselHTML = '<div id="carousel-example-generic" class="carousel slide" data-wrap="true">'
+        + '<ol class="carousel-indicators">'
+        + '<li data-target="#carousel-example-generic" data-slide-to="0" class="active"/>'
+        + '<li data-target="#carousel-example-generic" data-slide-to="1"/>'
+        + '<li data-target="#carousel-example-generic" data-slide-to="2"/>'
+        + '</ol>'
+        + '<div class="carousel-inner">'
+        + '<div class="item active" id="one">'
+        + '<div class="carousel-caption"/>'
+        + '</div>'
+        + '<div class="item" id="two">'
+        + '<div class="carousel-caption"/>'
+        + '</div>'
+        + '<div class="item" id="three">'
+        + '<div class="carousel-caption"/>'
+        + '</div>'
+        + '</div>'
+        + '<a class="left carousel-control" href="#carousel-example-generic" data-slide="prev"/>'
+        + '<a class="right carousel-control" href="#carousel-example-generic" data-slide="next"/>'
+        + '</div>'
+    var $carousel = $(carouselHTML)
+
+    stop()
+
+    $carousel
+      .on('slid.bs.carousel', function () {
+        strictEqual($carousel.find('.item.active').attr('id'), 'three', 'carousel wrapped around and slid from 1st to 3rd slide')
+        start()
+      })
+      .bootstrapCarousel('prev')
+  })
+
+  test('should stay at the end when the next method is called and wrap is false', function () {
+    var carouselHTML = '<div id="carousel-example-generic" class="carousel slide" data-wrap="false">'
+        + '<ol class="carousel-indicators">'
+        + '<li data-target="#carousel-example-generic" data-slide-to="0" class="active"/>'
+        + '<li data-target="#carousel-example-generic" data-slide-to="1"/>'
+        + '<li data-target="#carousel-example-generic" data-slide-to="2"/>'
+        + '</ol>'
+        + '<div class="carousel-inner">'
+        + '<div class="item active" id="one">'
+        + '<div class="carousel-caption"/>'
+        + '</div>'
+        + '<div class="item" id="two">'
+        + '<div class="carousel-caption"/>'
+        + '</div>'
+        + '<div class="item" id="three">'
+        + '<div class="carousel-caption"/>'
+        + '</div>'
+        + '</div>'
+        + '<a class="left carousel-control" href="#carousel-example-generic" data-slide="prev"/>'
+        + '<a class="right carousel-control" href="#carousel-example-generic" data-slide="next"/>'
+        + '</div>'
+    var $carousel = $(carouselHTML)
+    var getActiveId = function () { return $carousel.find('.item.active').attr('id') }
+
+    stop()
+
+    $carousel
+      .one('slid.bs.carousel', function () {
+        strictEqual(getActiveId(), 'two', 'carousel slid from 1st to 2nd slide')
+        $carousel
+          .one('slid.bs.carousel', function () {
+            strictEqual(getActiveId(), 'three', 'carousel slid from 2nd to 3rd slide')
+            $carousel
+              .one('slid.bs.carousel', function () {
+                ok(false, 'carousel slid when it should not have slid')
+              })
+              .bootstrapCarousel('next')
+            strictEqual(getActiveId(), 'three', 'carousel did not wrap around and stayed on 3rd slide')
+            start()
+          })
+          .bootstrapCarousel('next')
+      })
+      .bootstrapCarousel('next')
+  })
+
+  test('should stay at the start when the prev method is called and wrap is false', function () {
+    var carouselHTML = '<div id="carousel-example-generic" class="carousel slide" data-wrap="false">'
+        + '<ol class="carousel-indicators">'
+        + '<li data-target="#carousel-example-generic" data-slide-to="0" class="active"/>'
+        + '<li data-target="#carousel-example-generic" data-slide-to="1"/>'
+        + '<li data-target="#carousel-example-generic" data-slide-to="2"/>'
+        + '</ol>'
+        + '<div class="carousel-inner">'
+        + '<div class="item active" id="one">'
+        + '<div class="carousel-caption"/>'
+        + '</div>'
+        + '<div class="item" id="two">'
+        + '<div class="carousel-caption"/>'
+        + '</div>'
+        + '<div class="item" id="three">'
+        + '<div class="carousel-caption"/>'
+        + '</div>'
+        + '</div>'
+        + '<a class="left carousel-control" href="#carousel-example-generic" data-slide="prev"/>'
+        + '<a class="right carousel-control" href="#carousel-example-generic" data-slide="next"/>'
+        + '</div>'
+    var $carousel = $(carouselHTML)
+
+    $carousel
+      .on('slid.bs.carousel', function () {
+        ok(false, 'carousel slid when it should not have slid')
+      })
+      .bootstrapCarousel('prev')
+    strictEqual($carousel.find('.item.active').attr('id'), 'one', 'carousel did not wrap around and stayed on 1st slide')
+  })
 })
diff --git a/js/tests/unit/dropdown.js b/js/tests/unit/dropdown.js
index 335795fde..3cdf637ee 100644
--- a/js/tests/unit/dropdown.js
+++ b/js/tests/unit/dropdown.js
@@ -224,4 +224,45 @@ $(function () {
     $(document.body).click()
   })
 
+  test('should ignore keyboard events within <input>s and <textarea>s', function () {
+    stop()
+
+    var dropdownHTML = '<ul class="tabs">'
+        + '<li class="dropdown">'
+        + '<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown</a>'
+        + '<ul class="dropdown-menu" role="menu">'
+        + '<li><a href="#">Secondary link</a></li>'
+        + '<li><a href="#">Something else here</a></li>'
+        + '<li class="divider"/>'
+        + '<li><a href="#">Another link</a></li>'
+        + '<li><input type="text" id="input"></li>'
+        + '<li><textarea id="textarea"/></li>'
+        + '</ul>'
+        + '</li>'
+        + '</ul>'
+    var $dropdown = $(dropdownHTML)
+      .appendTo('#qunit-fixture')
+      .find('[data-toggle="dropdown"]')
+      .bootstrapDropdown()
+
+    var $input = $('#input')
+    var $textarea = $('#textarea')
+
+    $dropdown
+      .parent('.dropdown')
+      .on('shown.bs.dropdown', function () {
+        ok(true, 'shown was fired')
+
+        $input.focus().trigger($.Event('keydown', { which: 38 }))
+        ok($(document.activeElement).is($input), 'input still focused')
+
+        $textarea.focus().trigger($.Event('keydown', { which: 38 }))
+        ok($(document.activeElement).is($textarea), 'textarea still focused')
+
+        start()
+      })
+
+    $dropdown.click()
+  })
+
 })
diff --git a/js/tests/unit/tooltip.js b/js/tests/unit/tooltip.js
index 4fbd91dc3..eb578c22a 100644
--- a/js/tests/unit/tooltip.js
+++ b/js/tests/unit/tooltip.js
@@ -4,7 +4,7 @@ $(function () {
   module('tooltip plugin')
 
   test('should be defined on jquery object', function () {
-    ok($(document.body).tooltip, 'popover method is defined')
+    ok($(document.body).tooltip, 'tooltip method is defined')
   })
 
   module('tooltip', {
diff --git a/js/tooltip.js b/js/tooltip.js
index 68163c17a..cda147d9c 100644
--- a/js/tooltip.js
+++ b/js/tooltip.js
@@ -1,5 +1,5 @@
 /* ========================================================================
- * Bootstrap: tooltip.js v3.3.0
+ * Bootstrap: tooltip.js v3.3.1
  * http://getbootstrap.com/javascript/#tooltip
  * Inspired by the original jQuery.tipsy by Jason Frame
  * ========================================================================
@@ -25,7 +25,7 @@
     this.init('tooltip', element, options)
   }
 
-  Tooltip.VERSION  = '3.3.0'
+  Tooltip.VERSION  = '3.3.1'
 
   Tooltip.TRANSITION_DURATION = 150
 
diff --git a/js/transition.js b/js/transition.js
index 81993834a..68c2bd60b 100644
--- a/js/transition.js
+++ b/js/transition.js
@@ -1,5 +1,5 @@
 /* ========================================================================
- * Bootstrap: transition.js v3.3.0
+ * Bootstrap: transition.js v3.3.1
  * http://getbootstrap.com/javascript/#transitions
  * ========================================================================
  * Copyright 2011-2014 Twitter, Inc.