[squid-users] Correct Russian Language errors.

Hi!
Here a files with errors with correct Russian. In a current version
threre is a problem. The absence of "yo" letter. ("e" with 2 dots ).
People prefer to write "E" instead "yo", that is not quite correct,
like "How r u" intstead "How are you?"
I fix the existed files. It will be better to distribute squid with
this new files insted older ones.
Not all files were corrected, but not all the files were translated
before me.

Hope for understand.

Pasha