Added git branch and revision to development builds
Include git revision with -v output
Force git revision update on make
Added gitversion.c to gitignore
Use git revision in development strings
Merge branch 'master' into plugins

Conflicts:
	.gitignore
	Makefile.am
	src/main.c
	src/profanity.c
	src/ui/console.c
	src/ui/core.c
	src/xmpp/capabilities.c
	src/xmpp/iq.c