Rename makeLyricsList -> makeLyricsListForUI
Rename setInitialIndexes -> assignLyricsToTracks
Rename setLyrics -> setLyricsToScore
Add lyrics of tracks with notes to common lyrics list

(not only special lyrics from lyric tracks in karaoke files)
Reduce length of each lyric fragment (in the UI lyrics list) to 16 symbols
Put lyrics column (in the UI track table) after the sound column
Fix single voice case for tuplets
Fix default single voice option for drum tracks
Fix splitDrumVoices
Fix drum track separation
Fix null prev() segment pointer after the use of swing
Add test for swing and clef changes (MIDI import)
Merge pull request #506 from trig-ger/midi_fixes

Fixes for MIDI import