appsdk-bump-app-catalog 214 bumping sdk to almci-master-2847-dc9cb1c

sdk commit: RallySoftware/appsdk@dc9cb1c5861e7b0f22f1922527968c170bbad75a
author: Steven Boles and Matt McClellan
message: S73402: hackathon on keyboard navigation issues: spacebar on bucket chevron, tab on bulleted list in rich text