Added user authentication: Devise gem, user model, log in link, authentication required for edits.
Added Gravatar thumbnail: Gravtastic gem added and included; image added to application layout.
Changed transcriptions page to grid view; added different edit form; changed show view to grid.
Implementing comments on the transcription, relating and rendering comments.
Ignore files not needed for deployment: tmp, logs, public/uploads.
Added gems for SQL configuration (for development vs. production) and for 12Factor.
Added files for testing.