configure papertrail
Add views for versions
Versions view
Delete table
Edit views and add button in moderator cabinet
inherit from AdminController
modify seeds file
Tags for users
List of exhibits by tag
Blocks view by tag
merge master
asdf
Mozaic view
List and blocks view by tag
merge master
remove versions_controller_spec.rb
it works, Yeahh
configure PaperTrail for using in specs
fix versions views/add helper method
add spec for versions helper module