Added tag field in new view

Update README.rdoc

Merge pull request #4 from rubymonsters/rails4.2

Ruby version

Fixed line endings

Fixed confirmation question when deleting event

Configurated routes in clearance

Added link to index page

Rails 4.2 upgrade WIP

Added links to tags

Changed styling of index page

added pagination

added edit and destroy in tag index view, added destroy action to controller

validations on slug

Added tags index action and view & tags update action and view, added partials in tags view