INCLUDES -> AM_CPPFLAGS
Silence libtool warnings
Fix autoconf deprecations
Remove autogenerated gtk doc files.
Fix gtk doc build
Fix Changelog generation + Changelog.old does not exist
Follow configure for DISTCHECK_CONFIGURE_FLAGS
Add missing file to POTFILES.in
Merge pull request #29 from infirit/master

Lots of build cleanups so that "make distcheck" passes