appsdk-bump-app-catalog 270 bumping sdk to almci-master-2938-0c6cfce

sdk commit: RallySoftware/appsdk@0c6cfceba87a3fd94798b29386e96d774739ea5a
author: Andrew Grauch and Garston Tremblay
message: DE22411: Add New on TreeGrid duplicates row numbers.  Fixing issue caused by re-rendering of bottom row when changing page size.