grid.less in twitter-bootstrap-rails-2.1.2

- old
+ new

@@ -1,5 +1,21 @@
+//
+// Grid system
+// --------------------------------------------------
+
+
 // Fixed (940px)
 #grid > .core(@gridColumnWidth, @gridGutterWidth);
 
 // Fluid (940px)
-#grid > .fluid(@fluidGridColumnWidth, @fluidGridGutterWidth);
\ No newline at end of file
+#grid > .fluid(@fluidGridColumnWidth, @fluidGridGutterWidth);
+
+// Reset utility classes due to specificity
+[class*="span"].hide,
+.row-fluid [class*="span"].hide {
+  display: none;
+}
+
+[class*="span"].pull-right,
+.row-fluid [class*="span"].pull-right {
+  float: right;
+}