Merged translation from pootle for letter M
Merged translation from pootle for letter N
Merged translation from pootle for letter O
Merged translation from pootle for letter P.
Changed translation for page variation as вариация страницы, and site
pages variaion as вариант страниц сайта.
Merge pull request #5 from amelnikoff/master

Translations for letters from M to P, and page variation rename