appsdk-bump-app-catalog 470 bumping sdk to 1958-66cb983

sdk commit: RallySoftware/appsdk@66cb983bdbd9806f5319a9491a674ca0b875988b
author: Garston Tremblay and Richard Green
message: S64136: Project-level shared pages.  DE20727: 2nd page of WSAPI results not alpha-sorted.  Fixing bug in Pageable Store