init
generations of user and company models, controllers and migrations
added user registration and authorization, and checking if user login to added or edit records
added user checking (owner record for edit)
added bootstrap and style to aplication view, added active admin gem
added rails_admin gem
removed kaminari and added pagination with will_paginate
fix conflict will_paginate and rails_admin
change text field to email
added category model and categories controller, edit routes
edit routes
removed categories model and controller (awesome_nested_set)
added awesome_nested_set gem again :) and categories model for it, added protected_attributes gem, now we can create categories from admin menu
added validation (presents of :name)
added category_id to companies table
update schema after adding category_id field
commit pagination for companies view
set has many instead of belongs to
set belongs to instead of has many
remove pagination