ADDED api url for users
MOVED rabl_init to initializers folder; UPDATED user api
ADDED validation to role in users api
UPDATED api root route
UPDATED seeds.rb
UPDATED conversation and message model
ADDED conversation, skill, proficiency, message routes to api
ADDED involve_user method in conversation
UPDATED seeds.rb
Merge remote-tracking branch 'origin' into API
ADDED involve_user filter method to apprenticeship
CHANGED from_user to sender and to_user to recipient in message model
ADDED apprenticeships and ratings resources to routes
ADDED apprenticeships and proficiencies actions and json rabl files
UPDATED users_controller_spec
ADDED rabl templates
UPDATED apprenticeships/show json template
UPDATED proficiencies/show json template
Merge pull request #25 from josephktcheung/API

Api