9.0.0-RC2

UNA v.9.0.0-RC2 (release candidate 2)
Almost production ready, upgradable

Enhancements

Speed optimisation - #834
Ability to change default profile unit cover - #854
Separate page for friend request link from email - #786
Users picker with avatar - #780
Number of items per page settings for keyword and site searches - #820
Flexbox layout for Persons and Albums Images browsing - #806
Persons module: 'gender' and 'birthday' fields were added by default - #782
Market: new snippet layout - #810
Studio "Apps Market": New layout for product snippet - #819

Bugfixes

Around 100 of small bug-fixes