1Things to do, eventually:
2
3 - Jack-keyboard does strange things to input focus and keyboard event
4   handling.  Verify that it does not cause any problems.
5
6 - Make the code cleaner.  Get rid of all these global variables etc.
7
8 - Tooltips.
9
10 - Fix language (english) errors in documentation and web page.
11
12 - Add user-configurable key binding.
13
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