appsdk-bump-app-catalog 125 bumping sdk to 2677-e31b9ef

sdk commit: RallySoftware/appsdk@d77af626e19402bdbf2c2b9dc1f53ca0bfe3cc71
author: Dave Thompson
message: S68452 Show userstories as children of features in TreeGrid.

sdk commit: RallySoftware/appsdk@e31b9ef3b42cf567ca1e3009bfa5b39f76983f14
author: Dave Thompson
message: Revert "S68452 Show userstories as children of features in TreeGrid."