Removed dependency between livedesk plugin and content-article

The blog post service was using the AsLikeAll criteria from the
content-article plugin.
LB-212: Livedesk embed doesn't work

fixed configure.
LB-435: Upload avatar

fixed style for configure.
LB-421: Create embed theme for STT

Added missing facebook item source.
LB-421: Create embed theme for STT

Added missing facebook item.
LB-421: Create embed theme for STT

fixed permanent link.
LB-421: Create embed theme for STT

fixed dust utf decode.
Merge pull request #22 from nistormihai/devel

Devel
LB-421: Create embed theme for STT

Fixed avatar scaling
LB-421: Create embed theme for STT

Changed line endings
LB-421: Create embed theme for STT

Hardfixed a requirejs issue
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
Merge remote-tracking branch 'upstream/liveblog-13' into liveblog-13
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.
LB-499: Add provider no action

Fix external blogs rendering when provider url is changed.
LB-499: Add provider no action

Fix subscribed blogs lookup.
LB-552: Manage Feeds - mess up with an incorrectly supplied provider URL

Add validation for provider name and url fields.