Update Japanese translation

Update Japanese translation
Made some minor changes to the hook DLL compile settings
newest locale files from crowdin
reverted the windows vista d3d9 code -- apparently it doesn't work even when enabled
put all game capture windowing into a separate thread
revert recent patch to separate the windowing out into a thread
made a minor fix to prevent window messages from calling the hook stuff too often and causing performance issues
Updated to version 0.551b
actually, keep that new windowing code in game capture.
remove test build flag
Made the mic sync fix thing optional