#18 To-do-List

[Maja Hartwig]

Common list of properties, which need support (without hierarchy)
- tuplet, tupletSpan
- clefChange
- small notes: note @grace, note size="cue"
- glissando: gliss
- linebreak and pagebreak: sb, pb
- directives (e.g. dolce) and tempo: dir, tempo
- mordent
- crescendo-sign: hairpin
- arpeggio: arpeg
- trill and turn
- octave
- pedal
- multiple measure rest: multiRest
- beams on two staves: beamSpan

[Niko Beer]

[r40]: @grace and @size in elements note and chord now accessible and editable in the Property editor. Currently without effect to note rendering.