Added a link to the Google group; changed PHP version in the requirements.
Added a link to the Google group; changed PHP version in the requirements.

Udera/vexim2,avleen/vexim2,avleen/vexim2,runout-at/vexim2,Udera/vexim2,runout-at/vexim2,runout-at/vexim2,avleen/vexim2