formatter: hotfix format.code column size

* Fixes an issue with Format model after merging 37d44cb5.

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
oauth2server: Flask-OAuthlib<0.7 version limit

* Adds version limit of Flask-OAuthlib<0.7.  (addresses #2158)

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>