Remove python2.6 from travis
Remove python2.6 from travis

osu-cass/whats-fresh-api,iCHAIT/whats-fresh-api,osu-cass/whats-fresh-api,iCHAIT/whats-fresh-api,iCHAIT/whats-fresh-api,iCHAIT/whats-fresh-api,osu-cass/whats-fresh-api,osu-cass/whats-fresh-api