Added: test for inability to write/delete to stream '$all'.
Changed: read security for $all, removed unnecessary idempotencyId in SetStreamMetadata in ClientAPI.
Fixed: diag output.
Added: manager watchdog failure timewindow/count params.
Fixed a large number of warnings showing in Mono
change from application/json to vnd.
Fixed some more warnings
Merge remote-tracking branch 'upstream/dev' into dev