appsdk-bump-app-catalog 147 bumping sdk to 2716-0a21176

sdk commit: RallySoftware/appsdk@49fc8552c599ab9bd3074ee1b50c4a0b8dcf2004
author: Dave Thompson and Andrew Ralston
message: S70911: configurable parent/child mappings to support Portfolio Items.

sdk commit: RallySoftware/appsdk@0a2117663a029099007efc21a23ebc9c6b549bf5
author: Ronn McQueen and Erika Brice
message: S69566: Add expand/collapse ability to swimlanes