appsdk-bump-app-catalog 28 bumping sdk to 2546-446399f

sdk commit: RallySoftware/appsdk@97b25377c298a5067b5164a1193f8bf77c860d0b
author: Robert Everett and Ronn McQueen
message: DE21118: FIX: Loss of highlighted text in card editor

sdk commit: RallySoftware/appsdk@446399f7fb50cbb82b92ca4870ec75b9a511a03b
author: Robert Everett and Ronn McQueen
message: Revert "DE21118: FIX: Loss of highlighted text in card editor"