tplay: minor changes in tizprogramopts.cpp.
libtizonia: kernel now clears output headers before they are forwarded to the processor object (closes #89).
file reader: component now resets its stream-related parameters before getting/returning to OMX_StateExecuting (closes #90).
mad mp3 decoder: component now resets its stream-related parameters before returning to OMX_StateExecuting (closes #91).
alsa audio renderer: now resets nOffset field before releasing headers, in all scenarios (closes #92).
tplay: various refactorings to enable support for 'start' and 'stop' in decoder graphs via mpris2 interface.
tplay: now makes file uris canonical (i.e. absolute) before daemonizing (closes #93).