Fixed timezone handling in schedule parser.

TravisCI was failing due to the fact that there were a couple moment()
constructors without timezone arguments. Although tests would run fine
locally, running the code on TravisCI's servers (with a timezone of GMT+2)
would result in test failures.
Added Travis CI yml file and badge to README, currently only runs JS tests
Merge pull request #211 from JGulbronson/travis_ci_integration

Travis CI integration