Run `grunt`.

dist/js/bootstrap.js

@@ -230,14 +230,18 @@ if (typeof jQuery === 'undefined') {
       var $input = this.$element.find('input')
       if ($input.prop('type') == 'radio') {
         if ($input.prop('checked')) changed = false
-        if (!$input.prop('checked') || !this.$element.hasClass('active')) $parent.find('.active').removeClass('active')
+        $parent.find('.active').removeClass('active')
+        this.$element.addClass('active')
+      } else if ($input.prop('type') == 'checkbox') {
+        if (($input.prop('checked')) !== this.$element.hasClass('active')) changed = false
+        this.$element.toggleClass('active')
       }
-      if (changed) $input.prop('checked', !this.$element.hasClass('active')).trigger('change')
+      $input.prop('checked', this.$element.hasClass('active'))
+      if (changed) $input.trigger('change')
     } else {
       this.$element.attr('aria-pressed', !this.$element.hasClass('active'))
+      this.$element.toggleClass('active')
     }
-
-    if (changed) this.$element.toggleClass('active')
   }
 
 
@@ -280,7 +284,7 @@ if (typeof jQuery === 'undefined') {
       var $btn = $(e.target)
       if (!$btn.hasClass('btn')) $btn = $btn.closest('.btn')
       Plugin.call($btn, 'toggle')
-      if (!$(e.target).is('input[type="radio"]')) e.preventDefault()
+      if (!($(e.target).is('input[type="radio"]') || $(e.target).is('input[type="checkbox"]'))) e.preventDefault()
     })
     .on('focus.bs.button.data-api blur.bs.button.data-api', '[data-toggle^="button"]', function (e) {
       $(e.target).closest('.btn').toggleClass('focus', /^focus(in)?$/.test(e.type))
@@ -1265,6 +1269,7 @@ if (typeof jQuery === 'undefined') {
     this.timeout    = null
     this.hoverState = null
     this.$element   = null
+    this.inState    = null
 
     this.init('tooltip', element, options)
   }
@@ -1295,6 +1300,7 @@ if (typeof jQuery === 'undefined') {
     this.$element  = $(element)
     this.options   = this.getOptions(options)
     this.$viewport = this.options.viewport && $($.isFunction(this.options.viewport) ? this.options.viewport.call(this, this.$element) : (this.options.viewport.selector || this.options.viewport))
+    this.inState   = { click: false, hover: false, focus: false }
 
     if (this.$element[0] instanceof document.constructor && !this.options.selector) {
       throw new Error('`selector` option must be specified when initializing ' + this.type + ' on the window.document object!')
@@ -1353,16 +1359,20 @@ if (typeof jQuery === 'undefined') {
     var self = obj instanceof this.constructor ?
       obj : $(obj.currentTarget).data('bs.' + this.type)
 
-    if (self && self.$tip && self.$tip.is(':visible')) {
-      self.hoverState = 'in'
-      return
-    }
-
     if (!self) {
       self = new this.constructor(obj.currentTarget, this.getDelegateOptions())
       $(obj.currentTarget).data('bs.' + this.type, self)
     }
 
+    if (obj instanceof $.Event) {
+      self.inState[obj.type == 'focusin' ? 'focus' : 'hover'] = true
+    }
+
+    if (self.tip().hasClass('in') || self.hoverState == 'in') {
+      self.hoverState = 'in'
+      return
+    }
+
     clearTimeout(self.timeout)
 
     self.hoverState = 'in'
@@ -1374,6 +1384,14 @@ if (typeof jQuery === 'undefined') {
     }, self.options.delay.show)
   }
 
+  Tooltip.prototype.isInStateTrue = function () {
+    for (var key in this.inState) {
+      if (this.inState[key]) return true
+    }
+
+    return false
+  }
+
   Tooltip.prototype.leave = function (obj) {
     var self = obj instanceof this.constructor ?
       obj : $(obj.currentTarget).data('bs.' + this.type)
@@ -1383,6 +1401,12 @@ if (typeof jQuery === 'undefined') {
       $(obj.currentTarget).data('bs.' + this.type, self)
     }
 
+    if (obj instanceof $.Event) {
+      self.inState[obj.type == 'focusout' ? 'focus' : 'hover'] = false
+    }
+
+    if (self.isInStateTrue()) return
+
     clearTimeout(self.timeout)
 
     self.hoverState = 'out'
@@ -1682,7 +1706,13 @@ if (typeof jQuery === 'undefined') {
       }
     }
 
-    self.tip().hasClass('in') ? self.leave(self) : self.enter(self)
+    if (e) {
+      self.inState.click = !self.inState.click
+      if (self.isInStateTrue()) self.enter(self)
+      else self.leave(self)
+    } else {
+      self.tip().hasClass('in') ? self.leave(self) : self.enter(self)
+    }
   }
 
   Tooltip.prototype.destroy = function () {
@@ -2249,7 +2279,7 @@ if (typeof jQuery === 'undefined') {
     var offset       = this.options.offset
     var offsetTop    = offset.top
     var offsetBottom = offset.bottom
-    var scrollHeight = $(document.body).height()
+    var scrollHeight = Math.max($(document).height(), $(document.body).height())
 
     if (typeof offset != 'object')         offsetBottom = offsetTop = offset
     if (typeof offsetTop == 'function')    offsetTop    = offset.top(this.$element)

docs/dist/js/bootstrap.js

@@ -230,14 +230,18 @@ if (typeof jQuery === 'undefined') {
       var $input = this.$element.find('input')
       if ($input.prop('type') == 'radio') {
         if ($input.prop('checked')) changed = false
-        if (!$input.prop('checked') || !this.$element.hasClass('active')) $parent.find('.active').removeClass('active')
+        $parent.find('.active').removeClass('active')
+        this.$element.addClass('active')
+      } else if ($input.prop('type') == 'checkbox') {
+        if (($input.prop('checked')) !== this.$element.hasClass('active')) changed = false
+        this.$element.toggleClass('active')
       }
-      if (changed) $input.prop('checked', !this.$element.hasClass('active')).trigger('change')
+      $input.prop('checked', this.$element.hasClass('active'))
+      if (changed) $input.trigger('change')
     } else {
       this.$element.attr('aria-pressed', !this.$element.hasClass('active'))
+      this.$element.toggleClass('active')
     }
-
-    if (changed) this.$element.toggleClass('active')
   }
 
 
@@ -280,7 +284,7 @@ if (typeof jQuery === 'undefined') {
       var $btn = $(e.target)
       if (!$btn.hasClass('btn')) $btn = $btn.closest('.btn')
       Plugin.call($btn, 'toggle')
-      if (!$(e.target).is('input[type="radio"]')) e.preventDefault()
+      if (!($(e.target).is('input[type="radio"]') || $(e.target).is('input[type="checkbox"]'))) e.preventDefault()
     })
     .on('focus.bs.button.data-api blur.bs.button.data-api', '[data-toggle^="button"]', function (e) {
       $(e.target).closest('.btn').toggleClass('focus', /^focus(in)?$/.test(e.type))
@@ -1265,6 +1269,7 @@ if (typeof jQuery === 'undefined') {
     this.timeout    = null
     this.hoverState = null
     this.$element   = null
+    this.inState    = null
 
     this.init('tooltip', element, options)
   }
@@ -1295,6 +1300,7 @@ if (typeof jQuery === 'undefined') {
     this.$element  = $(element)
     this.options   = this.getOptions(options)
     this.$viewport = this.options.viewport && $($.isFunction(this.options.viewport) ? this.options.viewport.call(this, this.$element) : (this.options.viewport.selector || this.options.viewport))
+    this.inState   = { click: false, hover: false, focus: false }
 
     if (this.$element[0] instanceof document.constructor && !this.options.selector) {
       throw new Error('`selector` option must be specified when initializing ' + this.type + ' on the window.document object!')
@@ -1353,16 +1359,20 @@ if (typeof jQuery === 'undefined') {
     var self = obj instanceof this.constructor ?
       obj : $(obj.currentTarget).data('bs.' + this.type)
 
-    if (self && self.$tip && self.$tip.is(':visible')) {
-      self.hoverState = 'in'
-      return
-    }
-
     if (!self) {
       self = new this.constructor(obj.currentTarget, this.getDelegateOptions())
       $(obj.currentTarget).data('bs.' + this.type, self)
     }
 
+    if (obj instanceof $.Event) {
+      self.inState[obj.type == 'focusin' ? 'focus' : 'hover'] = true
+    }
+
+    if (self.tip().hasClass('in') || self.hoverState == 'in') {
+      self.hoverState = 'in'
+      return
+    }
+
     clearTimeout(self.timeout)
 
     self.hoverState = 'in'
@@ -1374,6 +1384,14 @@ if (typeof jQuery === 'undefined') {
     }, self.options.delay.show)
   }
 
+  Tooltip.prototype.isInStateTrue = function () {
+    for (var key in this.inState) {
+      if (this.inState[key]) return true
+    }
+
+    return false
+  }
+
   Tooltip.prototype.leave = function (obj) {
     var self = obj instanceof this.constructor ?
       obj : $(obj.currentTarget).data('bs.' + this.type)
@@ -1383,6 +1401,12 @@ if (typeof jQuery === 'undefined') {
       $(obj.currentTarget).data('bs.' + this.type, self)
     }
 
+    if (obj instanceof $.Event) {
+      self.inState[obj.type == 'focusout' ? 'focus' : 'hover'] = false
+    }
+
+    if (self.isInStateTrue()) return
+
     clearTimeout(self.timeout)
 
     self.hoverState = 'out'
@@ -1682,7 +1706,13 @@ if (typeof jQuery === 'undefined') {
       }
     }
 
-    self.tip().hasClass('in') ? self.leave(self) : self.enter(self)
+    if (e) {
+      self.inState.click = !self.inState.click
+      if (self.isInStateTrue()) self.enter(self)
+      else self.leave(self)
+    } else {
+      self.tip().hasClass('in') ? self.leave(self) : self.enter(self)
+    }
   }
 
   Tooltip.prototype.destroy = function () {
@@ -2249,7 +2279,7 @@ if (typeof jQuery === 'undefined') {
     var offset       = this.options.offset
     var offsetTop    = offset.top
     var offsetBottom = offset.bottom
-    var scrollHeight = $(document.body).height()
+    var scrollHeight = Math.max($(document).height(), $(document.body).height())
 
     if (typeof offset != 'object')         offsetBottom = offsetTop = offset
     if (typeof offsetTop == 'function')    offsetTop    = offset.top(this.$element)