Final set of changes so that `make distcheck` works.
Merge branch 'master' of github.com:OpenLightingProject/ola
Merge pull request #325 from peternewman/trivial-fixes

Another batch of using cleanup
More fixes while trying to make distcheck to work.

This enables the Python components during distcheck and allows `make check` to
pass in python/* . I think the only other failure at this point is
data/rdm/PidDataTest.py .
Merge branch 'master' of github.com:OpenLightingProject/ola