Update language/ru/ru-pommo.po

This translation has been completely rewritten and corrected. Many missing translations added. 
The translation need to be checked by users who uses poMMo with Russian. All inaccuracies and typographical errors in the translation should be reported as issues here.
Merge pull request #1 from soonick/master

Merge from Soonic
Code corrected for Poedit compatibility

Many Long strings splitted but not using concat operator treats as
string with line break and tabs but it doesn't.
Updated .po files for Soonic poMMo version

Old .po files were outdated, .po files recreated with poEdit.
Updated en-uk, retrantsated ru-pommo.po.
Russian translation still has some problems with multiline trings as it
was in the original poMMo.
Fixes for better localization with poEdit

poEdit can't properly understand PHP string that written in the multiple
lines, it treats linebreaks as symbols for translation. I have replaced
breaks to concatenation operator '.' to avoid linebreaks symbols in
strings being translated.
Fixed: Some strings didn't use localization operator

Added new strings for localization
en-uk Localization updated
Fixed: some strings are not localized

Headings of table in Manage Subscribers were not localized
Updated localizations ru, en
Merge pull request #112 from r3code/master

Here a complex update related to localization