Added first and last name fields to user table
Added rspec gem
Added test for firstname and lastname validity
Added university resource
Added atendance model
Added necessary relations for atendances
Merge branch 'release/v0.0.4'

* release/v0.0.4:
  Added necessary relations for atendances
  Added atendance model
  Added university resource
  Added test for firstname and lastname validity
  Added rspec gem
  Added first and last name fields to user table