Add an uncrustify configuration file to help properly formatting
Improve a bit uncrustify conf
Don't crash if PUBKEY is not set when using SIGNATURE_TYPE:PUBKEY

Reported by:	RootWyrm on freenode
Undocument @owner and @group with no argument since they don't work as intended when staging as a regular user.
See bug #730
Update document date
Merge remote-tracking branch 'upstream/master'