Changed capitalisation to keep consistency

Changed "Thanks" to "thanks" to keep consistency with the other options
Fixed italian mistranslation

Updated the italian translation to make it more similar to english.
Minor change in capitalisation (german)
Multiple corrections in french translation

Fixed mistranslations, missing spaces (before question and exclamation marks) and inconsistent capitalisation
Improved russian localization
Merge pull request #1 from miguelSantirso/master

International support
Merge pull request #123 from itruf/master

Russian language support improved