Merge branch '2.2.2-wip' into exploratory

Conflicts:
	docs/assets/css/bootstrap.css
	docs/getting-started.html
	docs/templates/pages/getting-started.mustache
	less/accordion.less
	less/alerts.less
	less/breadcrumbs.less
	less/buttons.less
	less/code.less
	less/dropdowns.less
	less/forms.less
	less/navbar.less
	less/progress-bars.less
	less/responsive-navbar.less
	less/tables.less
	less/thumbnails.less
	less/tooltip.less
	less/wells.less

less/type.less

@@ -20,33 +20,27 @@ p {
 // Emphasis & misc
 // -------------------------
 
-small {
-  font-size: 85%; // Ex: 14px base font * 85% = about 12px
-}
-strong {
-  font-weight: bold;
-}
-em {
-  font-style: italic;
-}
-cite {
-  font-style: normal;
-}
+// Ex: 14px base font * 85% = about 12px
+small   { font-size: 85%; }
+
+strong  { font-weight: bold; }
+em      { font-style: italic; }
+cite    { font-style: normal; }
 
 // Utility classes
-.muted {
-  color: @grayLight;
-}
-.text-warning { color: @warningText; }
+.muted               { color: @grayLight; }
+a.muted:hover        { color: darken(@grayLight, 10%); }
+
+.text-warning        { color: @warningText; }
 a.text-warning:hover { color: darken(@warningText, 10%); }
 
-.text-error { color: @errorText; }
-a.text-error:hover { color: darken(@errorText, 10%); }
+.text-error          { color: @errorText; }
+a.text-error:hover   { color: darken(@errorText, 10%); }
 
-.text-info { color: @infoText; }
-a.text-info:hover { color: darken(@infoText, 10%); }
+.text-info           { color: @infoText; }
+a.text-info:hover    { color: darken(@infoText, 10%); }
 
-.text-success { color: @successText; }
+.text-success        { color: @successText; }
 a.text-success:hover { color: darken(@successText, 10%); }
 
 
@@ -158,7 +152,9 @@ hr {
 }
 
 // Abbreviations and acronyms
-abbr[title] {
+abbr[title],
+// Added data-* attribute to help out our tooltip plugin, per https://github.com/twitter/bootstrap/issues/5257
+abbr[data-original-title] {
   cursor: help;
   border-bottom: 1px dotted @grayLight;
 }