Doc (o.heldnotes)
Doc (o.prob-rhythm)

Previously called 'o.midi.probrhythm'. Object mappings were added to
support this name change.
Added example
Doc (o.splitnotes)

Previously called 'o.note'. Added an object mapping to support this
name change.
Doc (o.note2vpr and o.vpr2note)
Doc (o.stripnotes)

Previously called "o.stripnotetype". Added an object mapping to support
the name change.
Minor changes