Update to Bootstrap 3.0.1

assets/less/bootstrap/utilities.less

@@ -9,6 +9,9 @@
 .clearfix {
   .clearfix();
 }
+.center-block {
+  .center-block();
+}
 .pull-right {
   float: right !important;
 }
@@ -20,6 +23,7 @@
 // Toggling content
 // -------------------------
 
+// Note: Deprecated .hide in favor of .hidden or .sr-only (as appropriate) in v3.0.1
 .hide {
   display: none !important;
 }
@@ -30,7 +34,17 @@
   visibility: hidden;
 }
 .text-hide {
-  .hide-text();
+  .text-hide();
+}
+
+
+// Hide from screenreaders and browsers
+//
+// Credit: HTML5 Boilerplate
+
+.hidden {
+  display: none !important;
+  visibility: hidden !important;
 }