Removed dependency between livedesk plugin and content-article

The blog post service was using the AsLikeAll criteria from the
content-article plugin.
LB-542: Embed URL can't be opened in IE8 and IE9

Fixed with a polyfill. From what I was the problem was just in IE8
Merge pull request #29 from vladnicoara/liveblog-13-ie

LB-542: Embed URL can't be opened in IE8 and IE9
Merge pull request #27 from vladnicoara/stt-issues

Stt issues
LB-460 : "Image Upload" won't clean the last uploaed one

x
LB-515 : avatar images are not being added to Users profile

x
LB-515 : avatar images are not being added to Users profile
LB-515 : avatar images are not being added to Users profile

remade pass check
LB-527 : Image type of posts -> images from Media Archive gallery can't be added

sync metadata before registering
LB-498 : Adding post -> it is very hard to select "image" and "link" type of posts

fixed
LB-515 : avatar images are not being added to Users profile

remade again pass check based on suggestion
LB-515 : avatar images are not being added to Users profile

remade again pass check based on suggestion
LB-539 : Collaborator user is able to add Google, Instagram, YouTube, etc. feeds, yet hitting "Configure Blog" requires relogin

added ISourceService to allGet on every right type
don't know if it's the correct logic, quickfix atm
LB-513 : Collaborator users are again exposed to functionality of admin

clear blog action cache
Merge remote-tracking branch 'upstream/liveblog-13' into liveblog-13
Merge remote-tracking branch 'sourcefabric/liveblog-13' into liveblog-13
LB-542: Embed URL can't be opened in IE8 and IE9

Fixed with a polyfill. From what I was the problem was just in IE8
LB-442 : Importing multiple media items will cause lots of "any" appear in Language dropdown list

fixed
LB-521 : Incorrect live blog model url
LB-499: Add provider no action

Use xfilter for creating new providers so it gets
data needed for rendering.