Merge branch '3.0.0-wip' of github.com:twbs/bootstrap into 3.0.0-wip

less/button-groups.less

@@ -22,11 +22,11 @@
   & .btn-default .caret {
     border-bottom-color: @btn-default-color;
   }
-  & .btn-primary,
-  & .btn-success,
-  & .btn-warning,
-  & .btn-danger,
-  & .btn-info {
+  .btn-primary,
+  .btn-success,
+  .btn-warning,
+  .btn-danger,
+  .btn-info {
    .caret {
       border-bottom-color: #fff;
     }

less/scaffolding.less

@@ -54,14 +54,16 @@ textarea {
 a {
   color: @link-color;
   text-decoration: none;
-}
-a:hover,
-a:focus {
-  color: @link-hover-color;
-  text-decoration: underline;
-}
-a:focus {
-  .tab-focus();
+
+  &:hover,
+  &:focus {
+    color: @link-hover-color;
+    text-decoration: underline;
+  }
+
+  &:focus {
+    .tab-focus();
+  }
 }