* Editor: Make it possible to add keybinding for all
  menu entries in the "(click me)" track header menu,
  including opening the "(click me)" menu itself.
  It's still not possible to configure keybinding for
  currently used instruments though, but it's far
  from straight forward how to such keybindings would
  work.
* GUI: Create different set of keybindings when
  opening the "From instrument/effect" menu depending
  on what the instrument is used for. For instance,
  when opening the menu from the "(click me)" menu,
  you also want to let the keybindings assign the
  instrument to the current track, not just create
  the instrument.
* Timing: Fix rare crash that reportedly can happen
  when drawing up the sequencer after inserting lines
  in the editor, and possibly other situations. Bug
  seems to have been introduced in V6.9.86.
* GUI: Add entries to also select from the list of
  most frequently used instruments in the various
  insert-instrument menus (in addition to select
  from plugin manager/preset/etc.)
* Editor: Fix painting correct background for the
  velocity nodes related to whether the nodes are
  current or not. Bug probably introduced in
  V6.9.80.