Remove merge conflict left-over from clef.cpp:

it turned out if was simply a matter of removing the code 'commented out' with `#if 0` -- `#else`.
Incomplete re-layout when the group of a staff is changed.

If a staff type ids changed from one group to another (like standard <=> TAB), lines or frtes and strings for notes are not recalculated.

Fixed by adding a call to `Score::cmdUpdateNotes()` to `ChangeStaffType::redo()` and `::undo()` when the group of the staff type changes.
Fix for issue #25598 - Text spacing incorrect on load
fix #26691
fix compiler warnings reg. unused parameters
Merge pull request #1000 from Jojo-Schmitz/warnings

fix compiler warnings reg. unused parameters
Merge pull request #999 from MarkRS-UK/#25598TextSpacingIncorrectOnLoad

Fix #25598 - Text spacing incorrect on load
Merge pull request #995 from mgavioli/Incomplete_relayout_on_staff_group_change

Incomplete re-layout when the group of a staff is changed.
Merge pull request #994 from mgavioli/Remove_merge_conflict_leftover_from_clef_cpp

Remove merge conflict left-over from clef.cpp
Swing functionality with UI for controlling swing added

Changed default value of swingRatio and added spacers where necessary

Optimized call to get swing ratio

cleaning up UI

Cleaning up UI further..

Size of spin boxes fixed

Using qreal instead of double

Swing functionality with user controlled swing ratio implemented
Merge branch 'swing_UI' of github.com:shredpub/MuseScore into swing_UI

Conflicts:
	libmscore/rendermidi.cpp

Fixing conflict in rendermidi