Initial facebook login implementation

Created a separate settings file for development environment because we
need a different facebook applications for:
1) http://localhost:3000/
2) http­:­/­/­g­i­m­m­e­r­i­d­e­.­h­e­r­o­k­u­a­p­p­.­com/
Merge branch 'master' of https://github.com/barbatus/GimmeRide