Merge pull request #151 from ratajczak/redesign

New home page
Add dgu search form which uses a custom form theme template to match the markup from CKAN
Merge branch 'redesign' into dgu_search_form
Export dataset request feature to match new requirements
Remove debug code from preprocess hook.
Merge pull request #152 from ratajczak/redesign

apps landing page
Merge pull request #155 from noels/new_odug_page

New odug page
Merge pull request #156 from noels/dgu_search_form

Dgu search form
Add back theme hook declaration in plugin
Merge pull request #157 from noels/dgu_search_form

Add back theme hook declaration in plugin
Update blog feature to match state on ckan2 instance
Update html in home page data search box to match ckan markup
Merge branch 'redesign' of github.com:datagovuk/dgu_d7.git into redesign