Split url_group on the Url model into guidance and series and add respective dropdowns on the analysis page
Set guidance and document series dropdowns as enabled/disabled according to the content type selected
Fix a bug where the scrape url filter is lost when a scrape result is saved
Addressed review comment
Merge pull request #57 from alphagov/split_url_group_into_document_and_series

Split url group into document and series
Merge branch 'master' of github.com:alphagov/transition into add_url_group

Conflicts:
	app/views/urls/show.html.erb