Add Russian language

Add Russian language file
Merge pull request #23 from alexbirukov/master

Add Russian language
strip comments
strip comments
Update Russian language

Update Russian language
Merge pull request #24 from alexbirukov/master

Update Russian language
Updated CKEditor to version 4.0.1
Removed CKEditor 3.6 files
Fixed dialog styling issues
Merge pull request #27 from joostkamphuis/master

Changed extension to use CKEditor 4.0.1
subscript and superscript no longer disabled
Create lang.it.php
Merge pull request #29 from DaveRev/patch-1

Create lang.it.php
Merge pull request #28 from fawx/master

changes to ckeditor's config.js to allow for subscript and superscript
Updated to 1.4
Restored functionality to create internal links
Added default setups to installation
Fix the issue #32 of the main repository

Also change all the tabs indentation for spaces to accord to PSR.
Merge pull request #33 from lucasmezencio/master

Fix the issue #32
fix in CSS selector