vars less spacing and cleanup

less/variables.less

@@ -80,6 +80,7 @@
 @tableBackgroundHover:              #f5f5f5; // for hover
 @tableBorder:                       #ddd; // table and cell border
 
+
 // Buttons
 // -------------------------
 @btnBackground:                     @white;
@@ -266,9 +267,7 @@
 // GRID
 // --------------------------------------------------
 
-
 // Default 940px grid
-// -------------------------
 @gridColumns:             12;
 @gridColumnWidth:         60px;
 @gridGutterWidth:         20px;