grunt dist

dist/css/bootstrap.css

@@ -1660,7 +1660,6 @@ input[type="radio"],
 input[type="checkbox"] {
   margin: 4px 0 0;
   margin-top: 1px \9;
-  /* IE8-9 */
   line-height: normal;
 }
 input[type="file"] {

package.json

@@ -49,7 +49,8 @@
     "grunt-saucelabs": "~5.0.0",
     "grunt-sed": "~0.1.1",
     "load-grunt-tasks": "~0.3.0",
-    "markdown": "~0.5.0"
+    "markdown": "~0.5.0",
+    "css-flip": "~0.3.0"
   },
   "jspm": {
     "main": "js/bootstrap",