Standard config compatibility update pass

Note the extra control options for Atomic Science, which explains an awful lot.
Updated Resonant Induction config

Doesn't work but probably will once the code is repaired in a future build.
Config tweaks

A couple of config tweaks to close some bugs.

Mekanism: servers were spamming client updates and causing massive TPS drops.
MFR: the loss of IC2 made acquiring fertilizer disproportionately challenging, which has now been addressed.
More config tweaks

KirinDave request
Revised settings for AtSci (again)

Looks like they're finally behaving themselves.
RR 2.6.12.0-EXP XML update

Resonant Induction is still bouncing to desktop in testing so is being skipped for now.

Forestry Extras is totally and utterly redundant AND adds worldgen, hence it is has been unceremoniously removed.

The rest is the typical update spam.
Derp correction

OK now we're ready to go!
Merge tag 'tags/v2.6.12.0' into serverExp