ADDED Apprenticeship rspec and validations, CHANGED database Apprenticeship and Rating timestamps to refuse NULL values
Merged with upstream
FIXED bug with validation preventing Conversation from being updated
ADDED Apprenticeship rspec and validations, CHANGED database Apprenticeship and Rating timestamps to refuse NULL values
ADDED Message model rspecs and validations, CHANGED database migrations, CHANGED other rspecs to match Message model
ADDED Message model rspecs and validations, CHANGED database migrations, CHANGED other rspecs to match Message model