refactor extensions directory
add jasmine test helpers
add filter to authorities and licences list pages, add styling

@gtrogers
@abersager
Update copy to refer to submissions rather than applications
fix menu and add spacing to right nav
Merge pull request #51 from alphagov/fix_menu

fix menu and add spacing to right nav
change authorities page title
Merge pull request #52 from alphagov/label-changes

Label changes
Merge pull request #50 from alphagov/refactor-extensions-directory

refactor extensions directory
Merge branch 'master' into list-pages-filter
fix copy of licences view and feature test
add licence information to jasmine-jquery plugin
Merge pull request #53 from alphagov/list-pages-filter

List pages filter
Merge branch 'master' into escape-markup

Conflicts:
	app/assets/javascripts/extensions/collections/collection.js