First alpha 13 release candidate

After the long dark ages of v2 it looks like we're about ready to go stable again! This is the first solid Omega zip after we broke all the things (again) over the last few months. Has JoshariasSurvival stable at least! A few modules still fail, will keep updating #3737 till all clear!

This is also the first built game zip from our new Jenkins, after also trying to rebuild pretty much all the modules. Still more work to come there but we finally can have easily triggered builds off all branches, PRs, and all the other things again :-)