createdb: Scan sharing channel should be added as "public".

Signed-off-by: Martin Stone <martin@d7415.co.uk>
(cherry picked from commit aefae98a0df68de96b9e333b9bb69e9515feed04)
IMAPPush: Remove line breaks before parsing the message body.

Signed-off-by: Martin Stone <martin@d7415.co.uk>
(cherry picked from commit 581a33c07110ac4dac7e6972851b683519957240)
!defcall, !broadcast: Robocop hates spaces, so make !broadcast accept a substitute and make !defcall use it where needed.

Signed-off-by: Martin Stone <martin@d7415.co.uk>
(cherry picked from commit c4f7adac61efdf85191ad9354bfc9c35349b3e2d)