[[ Bug 13721 ]] Added second parameter to MCNotifyPush, specifying whether the callback is required. Context of callback is indicated by its second parameter (0 for action, 1 for finalize).
[[ Bug 13721 ]] Fixed computation of safe parameter to MCNotifyPush from MCExternalRunOnMainThread.
Merge branch 'bugfix-13721' into develop
Merge branch 'develop' of https://github.com/runrev/livecode into develop