rails 3 again
mod gemfile
bundle install ran
add tips
added access control origin shit
commented position controller
added comments and improved code readability
init api versioning
fixed issue: index with taxi_id='' is not possible anymore
added services simple dashboard
removed unused folders
added  method to test for json==Position and json!=Position
added comments and cleaned code for Position Controller test
greatly improved code redability and added several helper methods to services controller
added extra filñes to gitignore
small modifications to Service model, code organization, etc.
added helper methods to service_test (Service unit test class)
added test 'cannot cancel|abandon if state is pending'
added additional documentation to Driver
added regex forcing to taxi get_or_create