Removed dependency between livedesk plugin and content-article

The blog post service was using the AsLikeAll criteria from the
content-article plugin.
Merge remote-tracking branch 'upstream/liveblog-13' into liveblog-13
LB-561: Wrong exception handling
* fixed
Merge pull request #44 from msat-cont/liveblog-13-fix-lb-561

LB-561: Wrong exception handling