Save wxLanguage enumeration value in ini file so that users are not surprised when a language is added and dolphin-emu is suddenly translated in a different language.
Update Spanish, Korean, and Simplified Chinese translations.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6804 8ced0084-cf51-0410-be5f-012b33b47a6e