created Data object as workaround

migrated functionality of DWdata to Data (to avoid spectacular crashes
of Matlab)
overhaul!

- removed constructOnLoad from class definitions (to enable save/load
to mat files)
- created StimulusList.extractTimeFromMarkers
tidying
implemented match for Stimulus and Wav classes
look at T and Tsub for way to use properties in subclasses
reorganized

moved the structure based code into folder Old
need to modify Stimulus subclasses to implement new match and
getmatchproperties methods
found common atten

created findcommon method for DW.StimulusList

next: work on the spike things
plotting rasters
plotting and testing
working on mouse files.  need to figure out probes/units
working on plots
modified find_valid_timestamps

made changes to allow pre-sound onset spikes
to be collected for each sweep
created RateData subclass
much work on plotting rate/level data