2.6.3:

- Fixed mqTranslate behavior with custom post types. Data won't be altered by mqTranslate anymore (fixes corrupted data with TablePress and probably other plugins).
- Added "Allowed Custom Post Types" advanced setting to enable multi-language support from mqTranslate for specific custom post types. 
- Added setting to remove displayed language prefix when content is not available for the selected language.
- Fixed wrongly reported 404 errors when default language was provided in the URL in Pre-Path mode while set to be hidden in URLs 
- Fixed minor JavaScript bug

git-svn-id: https://plugins.svn.wordpress.org/mqtranslate/trunk@940559 b8457f37-d9ea-0310-8a92-e5e31aec5664