some cleanup work

templates/js/ie-emulation-modes-warning.js

@@ -0,0 +1,51 @@
+// NOTICE!! DO NOT USE ANY OF THIS JAVASCRIPT
+// IT'S JUST JUNK FOR OUR DOCS!
+// ++++++++++++++++++++++++++++++++++++++++++
+/*!
+ * Copyright 2014 Twitter, Inc.
+ *
+ * Licensed under the Creative Commons Attribution 3.0 Unported License. For
+ * details, see http://creativecommons.org/licenses/by/3.0/.
+ */
+// Intended to prevent false-positive bug reports about Bootstrap not working properly in old versions of IE due to folks testing using IE's unreliable emulation modes.
+(function () {
+  'use strict';
+
+  function emulatedIEMajorVersion() {
+    var groups = /MSIE ([0-9.]+)/.exec(window.navigator.userAgent)
+    if (groups === null) {
+      return null
+    }
+    var ieVersionNum = parseInt(groups[1], 10)
+    var ieMajorVersion = Math.floor(ieVersionNum)
+    return ieMajorVersion
+  }
+
+  function actualNonEmulatedIEMajorVersion() {
+    // Detects the actual version of IE in use, even if it's in an older-IE emulation mode.
+    // IE JavaScript conditional compilation docs: http://msdn.microsoft.com/en-us/library/ie/121hztk3(v=vs.94).aspx
+    // @cc_on docs: http://msdn.microsoft.com/en-us/library/ie/8ka90k2e(v=vs.94).aspx
+    var jscriptVersion = new Function('/*@cc_on return @_jscript_version; @*/')() // jshint ignore:line
+    if (jscriptVersion === undefined) {
+      return 11 // IE11+ not in emulation mode
+    }
+    if (jscriptVersion < 9) {
+      return 8 // IE8 (or lower; haven't tested on IE<8)
+    }
+    return jscriptVersion // IE9 or IE10 in any mode, or IE11 in non-IE11 mode
+  }
+
+  var ua = window.navigator.userAgent
+  if (ua.indexOf('Opera') > -1 || ua.indexOf('Presto') > -1) {
+    return // Opera, which might pretend to be IE
+  }
+  var emulated = emulatedIEMajorVersion()
+  if (emulated === null) {
+    return // Not IE
+  }
+  var nonEmulated = actualNonEmulatedIEMajorVersion()
+
+  if (emulated !== nonEmulated) {
+    window.alert('WARNING: You appear to be using IE' + nonEmulated + ' in IE' + emulated + ' emulation mode.\nIE emulation modes can behave significantly differently from ACTUAL older versions of IE.\nPLEASE DON\'T FILE BOOTSTRAP BUGS based on testing in IE emulation modes!')
+  }
+})();

templates/js/ie10-viewport-bug-workaround.js

@@ -0,0 +1,22 @@
+/*!
+ * IE10 viewport hack for Surface/desktop Windows 8 bug
+ * Copyright 2014 Twitter, Inc.
+ * Licensed under the Creative Commons Attribution 3.0 Unported License. For
+ * details, see http://creativecommons.org/licenses/by/3.0/.
+ */
+
+// See the Getting Started docs for more information:
+// http://getbootstrap.com/getting-started/#support-ie10-width
+
+(function () {
+  'use strict';
+  if (navigator.userAgent.match(/IEMobile\/10\.0/)) {
+    var msViewportStyle = document.createElement('style')
+    msViewportStyle.appendChild(
+      document.createTextNode(
+        '@-ms-viewport{width:auto!important}'
+      )
+    )
+    document.querySelector('head').appendChild(msViewportStyle)
+  }
+})();