more use of noGui in libmscore
Capitalization fixes
a few more capitalization fixes

still unsure whether to enable these 2 QMessagesBox() calls, wherther it
is save to ignore these errors or to use MScore::lastError and return
false instead.
"untranslate" Link1 and Link3 in debugger
fix crash on startup on Windows...
fix potential crash when layouting lines
zoom in prefs in % too, just like on main menu
'untranslate' suffix '%'
adhoc 'fix' for multi crashes..., to be reviewed
Fix #11073 - will not remove selection after deleting note
Make the synthetizer dialog button labels more explicit
remove debugging artifact
update mtest
Merge pull request #727 from Jojo-Schmitz/untranslate-LinkX

"untranslate" Link1 and Link3 in debugger
Merge pull request #726 from Jojo-Schmitz/noGui-in-libmscore

more use of noGui in libmscore
Merge pull request #729 from Jojo-Schmitz/zoom-in-percent

 zoom in prefs in % too, just like on main menu
Update metadata.json

Update to final_test
Merge pull request #733 from Gootector/patch-3

Update metadata.json
fix include guard
Merge pull request #731 from gomesrod/Bugfix_issue_11073

Fix #11073