Always show merge status

**What does this PR do**
It makes sure you can always see if a merge request is mergeable or not. Even if you dont have any permissions to merge the specific request 

**Are there points in the code the reviewer needs to double check?**
Maybe the text "Connot be merge - You don't have permission to merge this MR". Couldn't find a better one.

**Why was this MR needed?**
So the Merge Request Officers can better review merge requests on Gitlab.com and ask people to make mergeable again.

**What are the relevant issue numbers / Feature requests?**
http://feedback.gitlab.com/forums/176466-general/suggestions/5673321-everyone-should-be-able-to-see-a-mr-status