Merge commit 'cb6068c9a351cd43111e7a89f2c69c095a3eeec6' into stable

* commit 'cb6068c9a351cd43111e7a89f2c69c095a3eeec6':
  Adding Micro Clearfix which is new and uses less CSS than PIE Clearfix

frameworks/compass/stylesheets/compass/utilities/general/_clearfix.scss

@@ -29,3 +29,16 @@
   }
   @include has-layout;
 }
+
+// An update to the PIE clearfix method that reduces the amount of CSS required
+// [A new micro clearfix hack](http://nicolasgallagher.com/micro-clearfix-hack/) (25 April 2011)
+@mixin micro-clearfix {
+  &:before, &:after {
+    content: "";
+    display: table;
+  }
+  &:after {
+    clear: both;
+  }
+  @include has-layout;
+}