Create FestApp Test Suite

Contains first unit test and it is possible to run with
scripts/run-tests.sh

Travis ci runs unit test and updates badge for status of
futurice/festapp-io travic status.

README.md contains simplified bootstrapping, updated script-paths and
travis ci status badge.

Use guard as automate test runner and rake scripts.
Merge pull request #56 from samitheberber/test-environment

Testing tools for iOS.