Fixed language check so that language with id=0 would be matched too (cherry picked from commit 29bad8f)
Added additional param to diferentiate when article is being handled. Should not change category seo when anything in article changes (cherry picked from commit 76469aa)
Only non fixed articles should have their seo regenerated. (cherry picked from commit fddf7ac)
Added method to unflag seo update on object save if it's certain field is not changed. Added article and category title check for seo flagging. (cherry picked from commit a1da8b4)
Added Seo integration. (cherry picked from commit 7ce793b)
Changed category insert to work with different versions (cherry picked from commit 3b2175a)