Merge pull request #166 from CruGlobal/MH-724

Add unassigned contacts link in sidebar
Merge pull request #167 from CruGlobal/MH-723

Change buttons in labels dialog
Merge pull request #168 from CruGlobal/MH-720

Send notification email when changing permissions to Admin or User
Fix send email anonymous reply to
Merge branch 'MH-719' into dev