appsdk-bump-app-catalog 781 bumping sdk to 2487-d5502de

sdk commit: RallySoftware/appsdk@19821b6aa4e8c418bb9fa6ce44836d244577cb15
author: Dave Thompson and Matt Novinger
message: DE21438: recursively hide child pagers when parent collapses.

sdk commit: RallySoftware/appsdk@15d7e5c10fe0a40c56daba9fe6699bddbadfd662
author: Matt McClellan and Alan Hensel
message: DE21583: Do not cache the MRU project preference in browser local

sdk commit: RallySoftware/appsdk@d5502dea2773942be39eba0afc677484fc75445f
author: Dave Thompson and Matt Novinger
message: S68562: show icon to indicate when record is loading.