Config/ID map update mirroring RU 2.1.0.0

Extra mods added again.

Please note also that Metallurgy is configured to add ores above y-70 for a reason: RR 1.5.* had really boring mountains. I'd like RR 1.6.* to not repeat this mistake. :)

There appear to be some minor cleanup issues I didn't catch when publishing RU so there may be further changes. The only reason not to push them is for the benefit of any FTB forum users using the pack but I think that's pretty rare now.
Adding the RU modlist document

This is so you actually find this thing easily in future. ;)
RU 2.2.0.0 update mirror commit for RR

Moar mods, bugfixed configs, phantom configs now exist (that one was weird), etc.
Got GasCraft working, documentation update flagged as v2.2.1.0

Herp de derp used clashing versions of Emasher mods. *dunce hat*
Updated XML and modlist doc for modpack dev release
Merging Velo's stuff and resolving conflicts.