autoconf: fix outdated language
autogen: Add newer automake versions

* This is kind of messy and should be re-done
  to support forward versions of automake
Fixes outdated autoconf syntax in configure.ac & adds newer automake verions to autogen.sh
Merge remote-tracking branch 'WurdahMekanik/master'

Basically, merge WurdahMekanik's changes on top of kallisti5's.

Conflicts:
	autogen.sh