Fix regression in Git Annex permission check
The changes in git-annex-shell mean a different thing than git-receive-pack. Revert to the previous code and use a simple check whether Git Annex is enabled.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
The changes in git-annex-shell mean a different thing than git-receive-pack. Revert to the previous code and use a simple check whether Git Annex is enabled.