create mailer/respective views/add user_id
add exhibition notifications views
add exhibit notifications views
add specs
modify mailer spec
modify mailer spec
add bootstrap 3 styles to devise views
Merge pull request #15 from SoftServeUniversity/refactor_add_images

add_nested_forms
Merge pull request #14 from SoftServeUniversity/75_email_notifications

75 email notifications
add simple_cov gem for test coverage
add coverage folder to .gitignore
add rubocop gem
update Gemfile.lock
get rid of Mime::PDF error
Merge pull request #16 from SoftServeUniversity/simple_cov

add simple_cov gem for test coverage
update