appsdk-bump-app-catalog 146 bumping sdk to 2713-68cefba

sdk commit: RallySoftware/appsdk@ac2a26c9e4cd0f9d7793c48145d9492ecd4e50ef
author: Garston Tremblay and Matt Farrar
message: S71137: AppCatalog + Labs

sdk commit: RallySoftware/appsdk@bf4d173d2f5e1ac546f8a0b6bb1ff4a53d34857b
author: Garston Tremblay and Matt Farrar
message: S71137: AppCatalog + Labs.  Fixing test, jshint and convention test issues.

sdk commit: RallySoftware/appsdk@68cefbaa829f5f04e88f5951798a6edb6cf60cdf
author: Garston Tremblay and Matt Farrar
message: Revert "S71137: AppCatalog + Labs.  Fixing test, jshint and convention test issues."