Generate manual without configuring conf.py
Link to documentation on rtd.org
Re-order and cleanup documentation
Update bug tracker URL
Fix #12: split test path into opencl and no-opencl

Using gtester's -p flag, the test paths can then be chosen.
Run at least some tests on Travis
Fix include paths to ufo.h
Remove ufo/ subdir from includes and fix problems
Move config.h.in to the top level
Fix #14: install kernels in ${datadir}/ufo
Fix #13: Add dependencies to .pc file

Excluding OpenCL though. No such file will be available across distributions in
the near future.
Fix in-tree build problem with Sphinx
Show build status of master branch only
Move the Python check top-level

Otherwise we won't see HAVE_PYTHON in config.h.
Rename and install mkfilter as ufo-mkfilter
Add mkfilter script again
Set header install dir to include/ufo-MAJOR/ufo
Set UFO SO version to major version
Install runjson as ufo-runjson
Use SO version scheme for gir and typelib