Bump API version to 1
Obsoletes !233 (closed) .
We need to change API version to make breaking changes and although it might be a little early the folks familiar with the GNOME universe (@adrien.plazas , @tobias.bernard) consider this marketing move a good thing ;)
Once this goes in I'll create a handy-0.x branch in case we have critical fixes there.
Edited by Guido Gunther