LB-595: Build embed for stt

first instead of fist
NR-955: text related to "Add Article" button contains inappropriate symbols

Fixed.
NR-929: Please ask user to confirm "delete" action

Fixed.
LB-643: Twitter provider bugs

fixed.
Merge pull request #87 from nistormihai/liveblog-13

Liveblog 13
Merge pull request #1 from eozan/NR-929

Nr 929
NR-929: Please ask user to confirm "delete" action

Refactored with gizmojs
Merge pull request #90 from nistormihai/devel

Devel
Merge remote-tracking branch 'sourcefabric/liveblog-13' into devel
Merge remote-tracking branch 'sourcefabric/devel' into desks-1

Conflicts:
	plugins/content-article/gui-resources/templates/list-item.dust