appsdk-bump-app-catalog 596 bumping sdk to 2174-81817d6

sdk commit: RallySoftware/appsdk@81817d6e589f443f5d0165654f811f2121a37506
author: Erika Brice
message: Revert "Revert "DE20569: Narrow area for blocking/unblocking story in the list view""