4.1 developments

There's no release yet, but to give you an idea what's going on behind the scenes:

* Detection of duplicate hotkeys when assigning a key
* Duplicate hotkeys are now highlighted

What I'm working on at the moment:
* Update to the BASS library 2.4
* Edit a slot's file in an external application
* FLAC support

And there's a long list of features that will be implemented when these things are done.