Update nl_NL.ini
Update nl_NL.ini
Update ru_RU.ini
Merge pull request #121 from adrian17/master

Update pl_PL.ini
Merge pull request #122 from adrian17/master

Update pl_PL.ini - mostly a cleanup
Little fix in [Screen]
[KeyMapping] updated
[System] updated
Update several language INIs; "System Information" was moved back to [Developer].
Update ru_RU.ini
System information.
Update de_DE.ini
Update ja_JP.ini
Merge pull request #124 from souga/master

Update ja_JP.ini
Update zh_TW
Update en_US.ini.
Updated zh_CN
Update zh_TW.ini
Update zh_CN.ini
Update ru_RU.ini
Clear Recent Games List
Update es_ES.ini

Added some missing error messages. Minimal tweaks.