New package: python3.4-cairo-1.10.0; replaces pycairo

Add patch to build against python3.4.
New package: python-cairo-1.10.0; replaces py2cairo
New packages: python-gobject-3.12.1; replaces pygobject
python3.4-gobject-3.12.1; replaces py3gobject
python-gobject-devel-3.12.1; replaces pygobject-devel
gnome-music: revbump against python3.4 and python3.4-gobject

Fix configure against python3.4.