LB-564: Chained-blog setting should be on livedesk level.
* an attempt
LB-564: Chained-blog setting should be on livedesk level.
* done
Merge branch 'liveblog-13' into liveblog-13-dev
LB-610: Blog Provider can't be deleted when it's used in another liveblog
* start of an rewriting on chained blogs
LB-610: Blog Provider can't be deleted when it's used in another liveblog
* adjusting; blog-source deleting w/o altering source type, thus being reusable
LB-610: Blog Provider can't be deleted when it's used in another liveblog
* adjusted
LB-446: SMS source plugin
* adjusted on CR
LB-610: Blog Provider can't be deleted when it's used in another liveblog
* adjusted
LB-610: Blog Provider can't be deleted when it's used in another liveblog
* adjusted
Merge pull request #65 from msat-cont/liveblog-13-dev

LB-564: Chained-blog setting should be on livedesk level