[comment] admin path in routes
[add] gem for breadcrumbs,breadcrumbs for category
Merge branch 'master' of https://github.com/martinstrasek/dormitory-web

Conflicts:
	app/views/layouts/application.html.erb
[rem] remove authorization method by devise in article controller
Merge branch 'master' of https://github.com/martinstrasek/dormitory-web

Conflicts:
	Gemfile
	Gemfile.lock
	app/models/category.rb
	app/views/layouts/application.html.erb
[del] remove devise auth from categories controller
[add] gitignore for bootsy image uploads
[mod] fix nil parent category breadcrumbs, right url, add other breadcrumbs
[mod] render bootstrap breadcrumbs
[add] base controller home breadcrumb