diff --git a/Gruntfile.js b/Gruntfile.js
index 7d55f4089..4cfcade9f 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -390,7 +390,7 @@ module.exports = function (grunt) {
           build: process.env.TRAVIS_JOB_ID,
           concurrency: 10,
           urls: ['http://127.0.0.1:3000/js/tests/index.html'],
-          browsers: grunt.file.readYAML('test-infra/sauce_browsers.yml')
+          browsers: grunt.file.readYAML('grunt/sauce_browsers.yml')
         }
       }
     },
diff --git a/bower.json b/bower.json
index 7590d787e..965ed2f1c 100644
--- a/bower.json
+++ b/bower.json
@@ -26,7 +26,8 @@
     "composer.json",
     "CONTRIBUTING.md",
     "docs",
-    "js/tests"
+    "js/tests",
+    "test-infra"
   ],
   "dependencies": {
     "jquery": ">= 1.9.0"
diff --git a/dist/js/bootstrap.js b/dist/js/bootstrap.js
index bf6a6a202..b9ae0fc11 100644
--- a/dist/js/bootstrap.js
+++ b/dist/js/bootstrap.js
@@ -817,7 +817,7 @@ if (typeof jQuery === 'undefined') { throw new Error('Bootstrap\'s JavaScript re
   }
 
   Modal.prototype.toggle = function (_relatedTarget) {
-    return this[!this.isShown ? 'show' : 'hide'](_relatedTarget)
+    return this.isShown ? this.hide() : this.show(_relatedTarget)
   }
 
   Modal.prototype.show = function (_relatedTarget) {
@@ -1208,7 +1208,7 @@ if (typeof jQuery === 'undefined') { throw new Error('Bootstrap\'s JavaScript re
         var $parent = this.$element.parent()
 
         var orgPlacement = placement
-        var docScroll    = document.documentElement.scrollTop || document.body.scrollTop
+        var docScroll    = document.documentElement.scrollTop
         var parentWidth  = this.options.container == 'body' ? window.innerWidth  : $parent.outerWidth()
         var parentHeight = this.options.container == 'body' ? window.innerHeight : $parent.outerHeight()
         var parentLeft   = this.options.container == 'body' ? 0 : $parent.offset().left
@@ -1578,7 +1578,7 @@ if (typeof jQuery === 'undefined') { throw new Error('Bootstrap\'s JavaScript re
 
     this.$element       = $(element).is('body') ? $(window) : $(element)
     this.$body          = $('body')
-    this.$scrollElement = this.$element.on('scroll.bs.scroll-spy.data-api', process)
+    this.$scrollElement = this.$element.on('scroll.bs.scrollspy', process)
     this.options        = $.extend({}, ScrollSpy.DEFAULTS, options)
     this.selector       = (this.options.target
       || ((href = $(element).attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) //strip for ie7
@@ -1702,7 +1702,7 @@ if (typeof jQuery === 'undefined') { throw new Error('Bootstrap\'s JavaScript re
   // SCROLLSPY DATA-API
   // ==================
 
-  $(window).on('load', function () {
+  $(window).on('load.bs.scrollspy.data-api', function () {
     $('[data-spy="scroll"]').each(function () {
       var $spy = $(this)
       $spy.scrollspy($spy.data())
diff --git a/test-infra/sauce_browsers.yml b/grunt/sauce_browsers.yml
similarity index 100%
rename from test-infra/sauce_browsers.yml
rename to grunt/sauce_browsers.yml
diff --git a/js/affix.js b/js/affix.js
index 84953c5cd..7d36fff0b 100644
--- a/js/affix.js
+++ b/js/affix.js
@@ -55,8 +55,6 @@
     var offsetTop    = offset.top
     var offsetBottom = offset.bottom
 
-    if (this.affixed == 'top') position.top += scrollTop
-
     if (typeof offset != 'object')         offsetBottom = offsetTop = offset
     if (typeof offsetTop == 'function')    offsetTop    = offset.top(this.$element)
     if (typeof offsetBottom == 'function') offsetBottom = offset.bottom(this.$element)
@@ -84,7 +82,7 @@
       .trigger($.Event(affixType.replace('affix', 'affixed')))
 
     if (affix == 'bottom') {
-      this.$element.offset({ top: scrollHeight - offsetBottom - this.$element.height() })
+      this.$element.offset({ top: position.top })
     }
   }
 
diff --git a/js/modal.js b/js/modal.js
index 454d7d57a..ec358696f 100644
--- a/js/modal.js
+++ b/js/modal.js
@@ -36,7 +36,7 @@
   }
 
   Modal.prototype.toggle = function (_relatedTarget) {
-    return this[!this.isShown ? 'show' : 'hide'](_relatedTarget)
+    return this.isShown ? this.hide() : this.show(_relatedTarget)
   }
 
   Modal.prototype.show = function (_relatedTarget) {
diff --git a/js/scrollspy.js b/js/scrollspy.js
index fc907f11b..137bd373f 100644
--- a/js/scrollspy.js
+++ b/js/scrollspy.js
@@ -19,7 +19,7 @@
 
     this.$element       = $(element).is('body') ? $(window) : $(element)
     this.$body          = $('body')
-    this.$scrollElement = this.$element.on('scroll.bs.scroll-spy.data-api', process)
+    this.$scrollElement = this.$element.on('scroll.bs.scrollspy', process)
     this.options        = $.extend({}, ScrollSpy.DEFAULTS, options)
     this.selector       = (this.options.target
       || ((href = $(element).attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) //strip for ie7
@@ -143,7 +143,7 @@
   // SCROLLSPY DATA-API
   // ==================
 
-  $(window).on('load', function () {
+  $(window).on('load.bs.scrollspy.data-api', function () {
     $('[data-spy="scroll"]').each(function () {
       var $spy = $(this)
       $spy.scrollspy($spy.data())
diff --git a/js/tooltip.js b/js/tooltip.js
index 7b75d7939..eb7875c9f 100644
--- a/js/tooltip.js
+++ b/js/tooltip.js
@@ -160,7 +160,7 @@
         var $parent = this.$element.parent()
 
         var orgPlacement = placement
-        var docScroll    = document.documentElement.scrollTop || document.body.scrollTop
+        var docScroll    = document.documentElement.scrollTop
         var parentWidth  = this.options.container == 'body' ? window.innerWidth  : $parent.outerWidth()
         var parentHeight = this.options.container == 'body' ? window.innerHeight : $parent.outerHeight()
         var parentLeft   = this.options.container == 'body' ? 0 : $parent.offset().left