fix #19936; minor coding style updates
simplify all.h in preparation for qt5
fix compilation warning
remove unused properties in Note object
start cleanup of regression tests
Merge pull request #197 from lvinken/musicxml-fixes

fix #19936; minor coding style updates
Fix #19923: TAB digits not centered on stem
Merge pull request #201 from mgavioli/Fix_19923_tab_digits_not_centered

Fix #19923: TAB digits not centered on stem
more test cleanup
Renamed textual Cursor class to TextCursor to avoid duplicate class name
fix #19920: crash when opening lines palette