Added Russian Cyrillic support.

Used one of the Cyrillic specifications here:
http://en.wikipedia.org/wiki/GOST_16876-71

Tested Roman-> Cyrillic and Cyrillic-> Roman.
Looks like there are no issues.

I dispute the idea that this can be applied to general Cyrillic- there are too many in-use languages that use a different transliteration scheme.