Updated 3 pages for russian translation
Add Russian pages to rendering list.

Trailing comma on last entry so another entry can be appended by adding
a single line.
Add Russian to list of rendered languages.
Remove apparently unused duplicate language list.
Add Russian to list of avaiilable languages.

Used for switching between languages.
Add Russian to language selector.

"Select your language" translation by Google Translate, so it may be
questionable.
Fix Russian link setting language to French.