Implemented 'vacation' entity
 - added model
 - added fixture
 - added migration
 - added relations with other models (user, reply)
 - added model tests
Added sql dump to gitignore
Added stage env
Normalized env
Changed test db in configs to become other
Fixed vacancy model to serialize 'requirements' field to Array
Implemented 'reply' entity
  - added model
  - added validators
  - added fixture
  - added migration
  - added relations with other models
  - added model tests
Added "owned_by" scope to "vacancy" model
Implemented "role" entity
Fixed user table
Integrated font-awesome
Added font-awesome to admin
Reworked role implementation
Fixed:
  - vacancy model (owned_by scope misstype)
  - routes
Removed erb templates
Fixed routes
Partialy implemented vacancy views and controllers
Improved vacancy view
Removed mysql dump
Implementation improved
  - removed 'requirements' attribute from 'vacancy' model
  - upgraded vacancy view
  - added view for new vacancy
  - upgraded vacancies_controller