LB-842: When a chained blog provider is deleted, the already selected blogs still appear on chained blog source
* chained blogs (in liveblog, liveblog-sync) filtered for having providers (or none origin_uri as legacy)
Merge branch 'liveblog-15' into lb-842-hide-orphan-chained-blogs
LB-842: When a chained blog provider is deleted, the already selected blogs still appear on chained blog source
* updating the source on re-enabling a chained blog
LB-873: User managed banner ad on top of the blog - backend
api, model
LB-873: User managed banner ad on top of the blog - backend
* some impl. methods
LB-873: User managed banner ad on top of the blog - backend
* inser/update with type
Merge branch 'liveblog-15' into lb-873-blog-media
LB-873: User managed banner ad on top of the blog - backend
* adjusted
Merge branch 'liveblog-15' into lb-873-blog-media
LB-861: On embed -> user comment, if the first filled captcha text is incorect later it will not accept it even if the correct text is provided

Build made.
LB-922: the posts published from Chained Blog are not published in timeline when Autoupdate=OFF

Fix chain timeline views lookup.
LB-922: the posts published from Chained Blog are not published in timeline when Autoupdate=OFF

Fix handling of deleted/unpublished posts.
LB-873: User managed banner ad on top of the blog - backend
* db upgrading
Merge pull request #300 from petrjasek/lb-922-chain-timeline

Lb 922 chain timeline
LB-861: On embed -> user comment, if the first filled captcha text is incorect later it will not accept it even if the correct text is provided

build
LB-861: On embed -> user comment, if the first filled captcha text is incorect later it will not accept it even if the correct text is provi

added in wrong place.
Merge pull request #301 from nistormihai/liveblog-15

Liveblog 15
APY-71: Update the db migration script for the inter_source database changes
done

Conflicts:
	plugins/livedesk/__plugin__/livedesk/upgrade.py
APY-71: Update the db migration script for the inter_source database changes done
Merge pull request #280 from msat-cont/lb-873-blog-media

LB-873: blog media