[GT6] Totally Gregged: Grey

Updated the following mods:
GregTech 6.11.06 > 6.11.07

Reverted the following mods:
Railcraft 9.12.2.1 > 9.12.2.0

Restored the long(?) missing scripts. I don't know how that happened...

Also removed the idea of two separate gamemodes, so the "gregged" recipes are always enabled.