This fixes Gentoo bug #507712 (https://bugs.gentoo.org/507712)

Signed-off-by: Lars Wendler <polynomial-c@gentoo.org>
fix #24951: grace notes after enabled
Make zoom() code a little nicer
fix #24951: export errors
fix #24951: fix warning
Fix issue #24468 - Tremolo exporting to parts
Completing tremolo export to part changes,
http://musescore.org/en/node/24468, adding functionality for
adding/deleting after part creation.
Fix #15212 - Incorrect pan in continous view when zoomed
add chordline tests for parts
Merge pull request #901 from lasconic/add-chordlines-test

add chordline tests for parts
fix #25572
display session dialog on top of splashscreen on Mac
Merge pull request #899 from vgstef/continuousView

Fix #15212 - Incorrect pan in continous view when zoomed
Merge branch '20082-PartExportFailure' of github.com:MarkRS-UK/MuseScore into MarkRS-UK-20082-PartExportFailure
fix test for tremolo in GP5 import
Merge branch 'MarkRS-UK-20082-PartExportFailure'
fix #25703: wrong clef for 1.3 scores with odd clef change
staff type edit updates
enabling more metaTags
fixing typos found along the way