(Windows) Non-ASCII String Displaying Bug

1. I put zh.qm into C:\Program Files\LMMS\data\locale\.
2. Click on the Automation Track.
3. Hold Ctrl and drag the block.

按住<Ctrl> ... -> ??<Ctrl>???

And Japanese:

[softrabbit]

I'm pretty sure that's your problem: https://github.com/LMMS/lmms/blob/master/src/gui/StringPairDrag.cpp#L55

http://doc.qt.io/qt-4.8/qstring.html#toLatin1

The returned byte array is undefined if the string contains non-Latin1 characters. Those characters may be suppressed or replaced with a question mark.

Fix coming up later...