adding scopes to search by tags
adding tests for search by tags
if tags are present in params search based on them. if not pick recents.
test to make sure controller is returning correct entries when querying by tag
Making tags clickable
refactoring ideas index controller a little when there are tags
partial to render tag list as links
Changing the heading to reflect when the user has searched for a tag
render the tags as clickable links on show page
Merge branch 'master' into search_by_tag

Conflicts:
	app/controllers/ideas_controller.rb
	app/models/idea.rb
adding ability to search for tags on search controller (also adding a json response)
search view when tags are being searched on rather than a search query
swapping test to search controller spec
view helper for clickable tags
Styling
Merge pull request #51 from openjournals/tags

Tags