Cleanup .travis.yml and specify python3.4
Cleanup .travis.yml and specify python3.4

Specifying 3.4 should make coveralls recognize cara.py as python. Before
it was running as 2.7 and could not understand the changed syntax like
metaclass= and nonlocal.

chainreactionmfg/cara,chainreactionmfg/cara,chainreactionmfg/cara