Updated power mode configs for Atomic Science 1.2
Implementing new Oregen Modes for 2.8

Plentiful is the standard setting from 2.7 and the recommended setup.

Scarce slashes all oregen by roughly 1/2.

Painful disables Nether Ores and move Copper, Tin and Gold to mountainous areas only.
Renaming Fair power mode's folder to something more sensible
RR 2.8.0.0-EXP-MAIN XML update

The dev build actually does something useful now! Huzzah! \o/