Merge pull request #284 from wardi/master

fix for error during ready_to_publish validation failure
changes in support of accessibility recommendations
Merge pull request #285 from deniszgonjanin/master

changes in support of accessibility recommendations
force cast average rating to an integer
Merge pull request #286 from deniszgonjanin/master

force rating to integer to fix SQL quirkiness
Changes for commenting and rating
Merge pull request #287 from thriuin/master

Changes for commenting and rating
Ensure dataset page only shows comments in the current language
Merge pull request #288 from thriuin/master

Ensure dataset page only shows comments in the current language
fix login failure failure
fix dataset rating off-by-one