adds travis integration
Add rails-dummy gem

* Add rails-dummy gem for engine
* Change spec_helper to 4.0.4
Add rails dummy to travis
Remove sqlite3 from Gemfile

* Because is a default db
Merge branch 'master' into feature/travis-integration

Conflicts:
	Gemfile.lock
Adding display to travis file
Remove rspec-dummy gem

* Because was not working with dummy validation in Rakefile
Adding spec/dummy app for travis

* Remove from gitignore file
Adding rspec instead rake
Merge pull request #3 from zalapeach/feature/travis-integration

adds travis integration