[642] Inventory stage 2 changes.

Re-enables inventory items in search, and allows the user to turn them on or off in the results.  They look a little different but definitely need more design work.

Added in some more routes, although this is definitely not required we might re-use the /publisher/ folder structure.

A couple of new plugins to make template handling easier.
[642] Minor UI tweaks suggested by DR.  Removed unnecessary nav and label changes on buttons
[642] Update to urls
A traffic light for publisher status
[642] Text change from Antonio to the questionnaire
[Moved the publish status to the sidebar for final tweaking
[642] Provide a little more information to mollom to check for spam
[642] Update search results look-and-feel for inventory. Integrate Font Awesome into ckanext-dgu
[642] Fix JS errors
[642] Clean up dataset/read for unpublished datasets.
[642] Visual dev of feedback/view and feedback/add
[642] Fix overlapping methods feedback_summary and feedback_item
[642] Redesign the way comments are rendered
[642] Safely handle insanely long feedback items
[642] Search unpublished datasets is a facet for better UX. Note that search.plugins+=unpublished in ckan.ini
[642] Add 'Unpublished' to dataset titles. Clean up sidebar on Package pages.
[642] Small cleanup commit
Release notes get displayed even if blank. Link to dataset from the upload status now the dataset is visible. Fix error handling in tasks.py.
Merge branch 'inventory-stage-2' of github.com:datagovuk/ckanext-dgu into inventory-stage-2
[642] Tweaks resulting from Antonio+Dread+Tom discussion