Allow pylint flags to override defaults

package.json

@@ -91,7 +91,7 @@
         "c9.ide.imgeditor": "#612e75ef4f",
         "c9.ide.immediate": "#a962119bec",
         "c9.ide.installer": "#0fde9f0067",
-        "c9.ide.language.python": "#80c19e5ba7",
+        "c9.ide.language.python": "#3ebfa241de",
         "c9.ide.language.go": "#c1446b259f",
         "c9.ide.mount": "#915b3d20be",
         "c9.ide.navigate": "#38ae100ea1",