appsdk-bump-app-catalog 603 bumping sdk to 2184-2600f4a

sdk commit: RallySoftware/appsdk@dd13030b3b16ef69aa88ac322b9c77c98fd50421
author: Ashly Simmons
message: slim up treegrid rows

sdk commit: RallySoftware/appsdk@2600f4a6fa5c184c8ec3ccd0f385c4cbca86d486
author: Ashly Simmons
message: updating grid checkboxes