fix #3510 and better handling of timesigs when deleting measures
Fix #20096: Chord name navigation

Provides the following navigation in edit mode for Chord Names:
Tab/Shift-Tab - start of next/previous measure.
Space/Shift-Space - next/previous note, rest or chordname.
;/: - next/previous beat, according to time signature.
Ctrl-1..Ctrl-9 - move forward by specified duration (like f.b.).

There are still issues of layout and display to address, but they
will be approached separately.
Add missing changeState() to lyricsUpDown()
Remove unnecessary parent checks harmonyEndEdit()
Correctly read hexadecimal codepoints.
Correct error in last commit.
Update font name and Unicode code points for 2.0
Note::updateAccidental() no longer removes ACC_USER accidentals
Score::upDown() removes all accidentals when changing pitch or tpc of a note
Note::updateAccidental() uses clone() to preserve accidental properties
TAB: make "Stem through staves" option more similar to regular pitch layout.
Merge pull request #245 from mgavioli/TAB_stems_through_staves

TAB: Stems through staves option
travis-ci: fix multi cpus build
TAB: do not draw stem portions between notes.

Also stop the stem a little before reaching the first note.
Merge pull request #249 from mgavioli/TAB_no_stems_between_notes

TAB: No stems between notes
Time Signatures: on staves with an odd number of spaces, do not leave an empty space between numerator and denominator.
inspector tweaking
fix inspector geometry management
Merge pull request #250 from mgavioli/TimeSig_on_even_lined_staves

Time Signatures in staves with even number of lines
Fix 20405: in TAB's, small notes collide with staff lines.