Merge pull request #249 from naisnouk/master

test for next_or_previous_event
fixing yaml for Travis
made some pep8 corrections
made some pep8 corrections for test
adding tests to init
updating django-compressor requirement
working on fix for build error on travis
working on fix for build error on travis
working on fix for build error on travis
working on fix for build error on travis
working on fix for build error on travis
working on fix for build error on travis
working on fix for build error on travis
working on fix for build error on travis
working on fix for build error on travis
working on fix for build error on travis
working on fix for build error on travis
working on fix for build error on travis
Merge pull request #250 from ercchy/master

Fix for travis-ci broke build
remove unused latest_events parameter