String:asUnitArg; only convert to SndFile if spec is BufSndFile
UMapDefListView sort categories
UMapGUI stop umap when replaced by another
add and change various UMapDefs
remove sine UMapDef
update UChainGUI.current at window:toFrontAction
correct post/compileString for MassEditU
tweaking UMapGUI title
make massEditWindow update-aware
keep massEditWindow open if not closed by user
correction for MassEditUMap posting
use less cryptic varnames in drawTimeGrid
improving TempoMap, add BarMap

also add better drawing functions
UScore gets a TempoMap by default
Pen:lineDash appears to fail in Qt
add MonoBufSndFile

a bufSndFile variant that will always create a mono buffer. When a
multichannel file is loaded it only uses the first channel.
small correction to UGlobalLevel
add grainSoundFile Udef
remove unused method of BufSndFileView
improvements on BarMap