appsdk-bump-app-catalog 483 bumping sdk to 1984-abb9e6b

sdk commit: RallySoftware/appsdk@abb9e6b54a69728a905e98c2d37d8f28c15a027a
author: Wade Peterson, Andrew Grauch, Richard Green and Garston Tremblay
message: S64257 - add infinite scrolling