New stable release: GNU Solfege 3.6.4
- Bugfix: Correct set of intervals in the "Second to octave" of melodic intervals going down.
- Learning tree editor: know about debugtree.txt if --debug is used.
- preferences window select sound widget bug fix.
- Bugfix: Swap lower and upper instrument if selecting different instruments for the top, the middle and the lowest tone of chords and harmonic intervals.
- Define the source code encoding in a few files.
- Use format string mapping key to make translations better.
- Added a test to check for bad format string mapping keys.
- Debian package: handle upgrade from broken 3.0.6-1
- melodicinterval: bugfix to test results
