rename tracker to legacy2
create new tracker module
create new hello tracker
create empty main window
copy old widgets over to the new tracker
copy old model over to the new tracker
connect ui to the ui model
remove obsolete qt stuff
remove obsolete threading stuff
copy old audio stuff over to the new tracker
register drivers to model
rename widgets module to views
implement timer example
Merge branch 'master' into remove_threading

Conflicts:
	kunquat/tracker/qt/ui.py
	kunquat/tracker/tracker.py
	kunquat/tracker/views/driverselect.py
	kunquat/tracker/views/mainwindow.py