Add Travis CI configuration
Update CHANGELOG.md
Travis: run bower install before build and test
Update CONTRIBUTING.md

;)
Update README.md
Travis: build only for npm 0.11, for now
Travis: install bower before running bower install
Initiative issue: when creating a new initiative, an issue needs to be stated (title and description)
Test validation for initiative title and description. Closes #12

Make a support for an initiative and test support validation