appsdk-bump-app-catalog 820 bumping sdk to 2537-bb267b8

sdk commit: RallySoftware/appsdk@f94c241f4c180c7c68f025cb226f6e6cc9ab4fb7
author: Kyle Morse
message: Fix artifactchosen event in example for SolrArtifactChooserDialog

sdk commit: RallySoftware/appsdk@bd9a7c6a36c115ae72a70e761d09a9e36286565e
author: Kyle Morse
message: Fix broken guides (thanks a lot intellij)

sdk commit: RallySoftware/appsdk@a7d6841ca63a7cf1d366e3a0e1acd2a2b4a9d2a7
author: Kyle Morse
message: Fix duplicate FormattedID column in tree grid example

sdk commit: RallySoftware/appsdk@820bdd829aa3f1967239014dd7ca113785d464c1
author: Kyle Morse
message: Add getGlobalContext method to Rally.environment

sdk commit: RallySoftware/appsdk@435a73dbb0236a47593dd8d1946f9c72d501c842
author: Kyle Morse
message: Ensure csrf token enabled for CORS requests