Update requirejs to 2.1.5 in livedesk-embed core.

2.1.5 fix .fake urls.
LB-572: posts unpublished from timeline disappear only after reloading of Embed URL

Add missing link to post view which is checked before removal.
Merge pull request #55 from petrjasek/lb-572-posts-unpublished-not-removed-embed

Lb 572 posts unpublished not removed embed