WOBS-3327: Adds parameter status to list_user_comments

The value of the parameter can either be a string or an array of strings. Valid values are the string
representations of the comment status found in the Comment entity.
Merge pull request #736 from m038/WOBS-3327

WIP: WOBS-3327: Adds parameter status to list_user_comments
remove diplucates from authors search
WOBS-3326 - Hidden comment is a part of points in profile
Merge pull request #737 from takeit/points

WOBS-3326 - Hidden comment is a part of points in profile & duplicates from authors search
Merge branch 'master' of https://github.com/sourcefabric/Newscoop