fix #21838 fix #21910
Add loop playback feature
initial hooks
implementation of next/prev track

move up and down by track, stopping only at tracks that have content at
or before the cursor position within the current measure
change alt-up/down to move by chord and track

First move through current chord on current track, then move up and down
by track.
Framework for bagpipe palette
Initial implementation bagpipe palette
Initial implementation bagpipe palette
Image inspector has some issues:

*) When autoscale is turned on, size and scale values are not updated neither are disabled
*) Lock aspect ratio does not work
*) mm/sp size check box does not update size values not size units of measure

Fixed by:

1) Sync-ing the enum at the beginning of 	inspectorimage.cpp with iList items
2) Adding a few extra calls to InspectorBase::valueChanged() for commands which change two values at the same time
Merge pull request #433 from mgavioli/Fix_inspector_for_images

Fix inspector for images
Merge pull request #430 from lvinken/13108-bagpipe-palette

13108 bagpipe palette
Merge pull request #427 from vgstef/loopPlayback

Add loop playback feature
fix loop icon
Merge pull request #432 from MarcSabatella/kbd-mode

vertical keyboard navigation
bump end barline width to 0.5sp. See #22050
fix scale of dots in repeat barline for small staves
add show property to Part object in plugin framework
cleanup some casts in navigation code
Merge pull request #422 from lasconic/zipunicode

fix #21838 fix #21910 change filename encoding in zip files
update inspector; styled line width for ottava