Add feature tests for user sessions
Update Devise to 3.0.0
Configure strong_parameters for user sign_up
Add Code Climate badge to README
Remove extra markdown h1 tag in README
Implement trips#create in API
Add Travis-CI configuration file
Add Travis CI badge to README
Modify database name in database example file
Update service name & database name in .travis.yml
Update the database example filename
Run migrations for Travis before calling rspec
Use resources in trips + locations API
Merge pull request #2 from Tokenize/using-resources

Use resources in trips + locations API
Make 'trip_params' return 'params' if its empty

This way we can use trip_params for all POST/GET/PUT/DELETE methods
without having a mix of calls to params / trip_params.
Replace 'params' with 'trip_params' in Trip API
Add support for deleting trips in API
Ensure that trips are created with correct user
Add support for updating trips in API
Implement location creation.