acts-as-taggable gem installed
--> new migrations added to DB setup
--> polymorphic tables 'tags' and 'taggings' created
added acts_as_taggable relationship to the article model
removed articles.rb file, added tagging for article type only
added tagging functionality for events
removed links.rb file, added tagging functionality for links
fixed the schema files ad merge conflict with gemfiles and schema
Merge pull request #16 from lukemesiti/tags

Fixed schema conflict, looks good :)