Fix wrong direction of broken beam segment in longer-dotted note + shorter note groups
Simpler tests; improved comments
fix #19985 - mark score dirty

after chnages to Menu -> Display -> Show
{Invisible|Unprintable|Frames|Page Margins}
Merge pull request #205 from Jojo-Schmitz/issue_#19985

fix #19985 - mark score dirty
small capitalization fix
add 'show staff' to palette cell properties
add missing gui update after deleting palette cell delete
rework of palettes & workspace
revert previous commit
fix some strings
hide lilypond export behind experimental command line option
clear selection should also clear start and end segment
more workspace changes
fix #19890 On restart auto-loaded score has wrong zoom
Merge pull request #206 from uwei/auto-loaded-wrong-zoom

fix #19890 On restart auto-loaded score has wrong zoom
remove lilypond export from the ui, still possible on the command line
update colornote and notenames plugins
Fix null pointer crash in audio preferences.

When MuseScore is set to use Jack, the PortAudio driver returns null.
Fix null pointer crash in preferences

When turning off "use JackAudio" in preferences, l and r get set to null.
In this case, skip the section that uses them.
Merge pull request #207 from softins/preferences-crash-fix

Preferences crash fix