Merge pull request #1012 from edx/fix/frances/sass-debug-off

Dev Environment: Disabling Sass Debug Mode

rakelib/assets.rake

@@ -45,7 +45,7 @@ def sass_cmd(watch=false, debug=false)
       sass_watch_paths << THEME_SASS
     end
 
-    "sass #{debug ? '--debug-info' : '--style compressed'} " +
+    "sass #{debug ? '' : '--style compressed'} " +
           "--load-path #{sass_load_paths.join(' ')} " +
           "#{watch ? '--watch' : '--update'} -E utf-8 #{sass_watch_paths.join(' ')}"
 end