[W] Creating apartments

[azranel]

Template + Views for CRUD apartments.

[azranel]

• Viewing apartment ("/apartments/2") where 2 is apartment id.
• Adding user to apartment (logged_user_id, apartment_id, email_for_new_user)
• Links to apartments

[azranel]

Fetching apartment (GET /apartments/:id) now returns residents. Fetching user (GET /users/:id) now returns apartments of user.

[dajvido]

Everything is done.