fix import error
encode all hardcoded ampersands
WCAG requires that all registration links on a page point to the same URL. Fix mismatch between mega menu and page body
fix heading hierarchy
fix dangling spans
hide license anchor if no license specified
more accessibility and validation tweaks
provide unique title for all resources at all costs
accessibility
dataset form accessibility and validation
Merge branch 'master' of git://github.com/open-data/ckanext-canada

Conflicts:
	ckanext/canada/metadata_schema/interface.py
	ckanext/canada/templates/public/package/comments.html
Merge pull request #231 from deniszgonjanin/master

Fixes for passing validation and accessibility requirements