[fix bug 891001] Sort skills in curated groups by number of members
[fix bug 891001] Sort skills in curated groups by number of members

ChristineLaMuse/mozillians,ChristineLaMuse/mozillians,johngian/mozillians,justinpotts/mozillians,hoosteeno/mozillians,akatsoulas/mozillians,chirilo/mozillians,anistark/mozillians,brian-yang/mozillians,akatsoulas/mozillians,johngian/mozillians,brian-yang/mozillians,hoosteeno/mozillians,safwanrahman/mozillians,ChristineLaMuse/mozillians,akatsoulas/mozillians,brian-yang/mozillians,hoosteeno/mozillians,fxa90id/mozillians,mozilla/mozillians,akatsoulas/mozillians,akarki15/mozillians,anistark/mozillians,brian-yang/mozillians,safwanrahman/mozillians,akarki15/mozillians,mozilla/mozillians,safwanrahman/mozillians,mozilla/mozillians,chirilo/mozillians,mozilla/mozillians,anistark/mozillians,justinpotts/mozillians,safwanrahman/mozillians,justinpotts/mozillians,johngian/mozillians,johngian/mozillians,chirilo/mozillians,hoosteeno/mozillians,akarki15/mozillians,chirilo/mozillians,anistark/mozillians,fxa90id/mozillians,justinpotts/mozillians,fxa90id/mozillians,akarki15/mozillians,fxa90id/mozillians