LB-558 : Filtering Collaborators -> posts from other "faded" collaborators started to reappear on Left Panel when the Unpublish action was taken

fixed
Merge pull request #53 from gizm0bill/liveblog-14

LB-558 : Filtering Collaborators -> posts from other "faded" collaborato...
Update from devel

Manage collaborators css fix, facebook posts css for improved for embed
Merge pull request #54 from nidzix/update-from-nidzix-devel

Update from devel
Merge branch 'liveblog-13' of https://github.com/sourcefabric/Superdesk into liveblog-13