Version 5.0.0

• Switching to MEI 5.1
• Implementation of mensural notation scoring up with --mensural-score-up (@martha-thomae)
• Support for cpMark (colla parte)
• Support for verse@place for lyrics above the staff
• Support for MIDI octave displacement without @oct.ges (@brdvd)
• Option --lyric-height-factor to increase the spacing of the lyrics
• Fix surface, symbolDef, and zone losing @xml:ids with --remove-ids (@rettinghaus)