Added computing of x coordinates for channels of varying length
Fixed the samplerate of status channels and added button events as events in atsf.c
Fixed some NSLog messages
Stroke segments are stored for later use (and at the moment never recalculated)
Added opening files by selecting Open in the File menu
Defined salto.open(filename, format = None) as salto.PluginManager.read(filename, format, 'main')
Initial support for Open Recent menu
Added the possibility to interrupt execution of Python code
Added Channel_getEvents() and Channel_validateTimes()
Refactored resampling
Fixed status channel sampling rate
Fixed synthesization of properties
First try at background drawing
Added an empty SaltoEventView class