Merge pull request #279 from wardi/master

A11y fixes, make breadcrumbs more like drupal site, add a --mirror option to portal-update-worker, remove "about API link"
fix for GCOD-555
Merge pull request #280 from deniszgonjanin/master

Accessibility issues
Update mega-menu and translations
Merge pull request #281 from thriuin/master

Update the mega-menu for CKAN and the French translations
Remove duplicate PO file entries
Merge pull request #282 from thriuin/master

Remove duplicate entries from PO file
fix error encountered in deployment
Merge pull request #283 from deniszgonjanin/master

fix error encountered in deployment
fix for error during ready_to_publish validation failure