Log Message:
audio/fasttracker2: Update to v1.11

Changes since v1.10:

v1.11 - 10.03.2020
- Bugfix: The Help screen scrollbars could act strange when switching subjects
- Bugfix: Some of the Instr. Ed. (+ extension) scrollbars could be moved with
  the up/down pushbuttons even if the current instrument is not allocated.
  This is not supposed to be possible.
- Bugfix: In the Instr. Ed. screen, the "Add" button (vol/pan env.) \ 
could lead
  to a crash if the current instrument wasn't allocated.
- Bugfix: The piano in the Instr. Ed. screen could show wrong keypresses if
  extremely low or high pitches were being played.
- The up/down pushbutton delay has been increased, it's too short in original
  FT2 (in my opinion).
- The 4-tap cubic spline interpolation table (for the audio mixer) has been
  recalculated in higher precision and more phases. It should in theory be
  better, but I can't personally hear any difference.
- Windows: The DPI-scaling is now per-monitor aware instead of system aware.
  Maybe this solve the issue of blurry pixels for some people...
- Don't warn the user when loading a song with stereo samples. They will be
  mixed to mono anyway, and I don't think it's an important warning to show.
- Fixed some minor grammar errors in some GUI texts