Updating Bootstrap to v.2.0.0

roots-actions.php:  added responsive css framework file
roots-options.php: changed default css classes for bootstrap v2.0.0
roots-scripts.php: updated less to v1.2.1, changed the load order and
added new scripts for bootstrap v2.0.0

Added all of the new css, js, less asset files and updated all of the
previous ones for bootstrap v2.0.0

css/bootstrap/lib/dropdowns.less

@@ -0,0 +1,131 @@
+// DROPDOWN MENUS
+// --------------
+
+// Use the .menu class on any <li> element within the topbar or ul.tabs and you'll get some superfancy dropdowns
+.dropdown {
+  position: relative;
+}
+.dropdown-toggle {
+  // The caret makes the toggle a bit too tall in IE7
+  *margin-bottom: -3px;
+}
+.dropdown-toggle:active,
+.open .dropdown-toggle {
+  outline: 0;
+}
+// Dropdown arrow/caret
+.caret {
+  display: inline-block;
+  width: 0;
+  height: 0;
+  text-indent: -99999px;
+  // IE7 won't do the border trick if there's a text indent, but it doesn't
+  // do the content that text-indent is hiding, either, so we're ok.
+  *text-indent: 0;
+  vertical-align: top;
+  border-left:  4px solid transparent;
+  border-right: 4px solid transparent;
+  border-top:   4px solid @black;
+  .opacity(30);
+  content: "\2193";
+}
+.dropdown .caret {
+  margin-top: 8px;
+  margin-left: 2px;
+}
+.dropdown:hover .caret,
+.open.dropdown .caret {
+  .opacity(100);
+}
+// The dropdown menu (ul)
+.dropdown-menu {
+  position: absolute;
+  top: 100%;
+  left: 0;
+  z-index: @zindexDropdown;
+  float: left;
+  display: none; // none by default, but block on "open" of the menu
+  min-width: 160px;
+  max-width: 220px;
+  _width: 160px;
+  padding: 4px 0;
+  margin: 0; // override default ul
+  list-style: none;
+  background-color: @white;
+  border-color: #ccc;
+  border-color: rgba(0,0,0,.2);
+  border-style: solid;
+  border-width: 1px;
+  .border-radius(0 0 5px 5px);
+  .box-shadow(0 5px 10px rgba(0,0,0,.2));
+  -webkit-background-clip: padding-box;
+     -moz-background-clip: padding;
+          background-clip: padding-box;
+  *border-right-width: 2px;
+  *border-bottom-width: 2px;
+
+  // Allow for dropdowns to go bottom up (aka, dropup-menu)
+  &.bottom-up {
+    top: auto;
+    bottom: 100%;
+    margin-bottom: 2px;
+  }
+
+  // Dividers (basically an hr) within the dropdown
+  .divider {
+    height: 1px;
+    margin: 5px 1px;
+    overflow: hidden;
+    background-color: #e5e5e5;
+    border-bottom: 1px solid @white;
+
+    // IE7 needs a set width since we gave a height. Restricting just
+    // to IE7 to keep the 1px left/right space in other browsers.
+    // It is unclear where IE is getting the extra space that we need
+    // to negative-margin away, but so it goes.
+    *width: 100%;
+    *margin: -5px 0 5px;
+  }
+
+  // Links within the dropdown menu
+  a {
+    display: block;
+    padding: 3px 15px;
+    clear: both;
+    font-weight: normal;
+    line-height: 18px;
+    color: @gray;
+    white-space: nowrap;
+  }
+}
+
+// Hover state
+.dropdown-menu li > a:hover,
+.dropdown-menu .active > a,
+.dropdown-menu .active > a:hover {
+  color: @white;
+  text-decoration: none;
+  background-color: @linkColor;
+}
+
+// Open state for the dropdown
+.dropdown.open {
+  // IE7's z-index only goes to the nearest positioned ancestor, which would
+  // make the menu appear below buttons that appeared later on the page
+  *z-index: @zindexDropdown;
+
+  .dropdown-toggle {
+    color: @white;
+    background: #ccc;
+    background: rgba(0,0,0,.3);
+  }
+  .dropdown-menu {
+    display: block;
+  }
+}
+
+// Typeahead
+.typeahead {
+  margin-top: 2px; // give it some space to breathe
+  .border-radius(4px);
+}