UI-1842: Fix issue with main extension number replacement

UI-1842: Fix issue with main extension number replacement

Merge remote-tracking branch 'origin/3.21' into 3.21

UI-1702: fixed the 'this week' filter on call logs so that it works o…

…n sundays too

UI-377: Added restart feature to SmartPBX

UI-1443: Fix icon color of nav-tabs on hover & focus

UI-1422: the userGroup is now used instead of the baseGroup in MainNu…

…mber's Virtual Receptionist.

Conflicts:
	submodules/strategy/strategy.js

UI-1331: Hotpatch only for 3.19, fixing the callback of the buyNumber…

… control so we successfuly add them to the user/groups

fix - typo that prevents display/edit sip device

this typo used with toLowerCase causes an exception and prevents the popup dialog to show

UI-1333: Fixed issue with presence_id set to null in some odd cases