Extended and repaired mod support

New mods added.

Oddly, some mods (DenPipes and AdditionalPipes) were installed, loaded yet not registering IDs and creating configs. This appears to have now been corrected and these mods are registering objects correctly. Their configs are now included accordingly.

The accidental ID mismatch in IC2 has also been corrected here.
Documentation update

This marks RU 2.2.0.0 as done!
Merge pull request #12 from velotican/patch

RU 2.2.0.0