[Reminder] Gitlab HTML formatter can be dropped with rouge 2.0
Created by: rumpelsepp
This issue is just a reminder for this comment: https://github.com/rumpelsepp/gitlabhq/commit/22d60e30342e9e954bba1d601c8df512c4c9408e#commitcomment-12413239
With rouge 2.0 we will be able to drop some code, which is a good thing!