Share the trace session start logic used for kernel tracing.
Share the trace session start logic used for kernel tracing.

Now we autostart the user traces we're interested in as well.

ryandoyle/pcp_original,ryandoyle/pcp_original,ryandoyle/pcp_original,adfernandes/pcp,wuliming/pcp,mbaldessari/pcp,wuliming/pcp,wuliming/pcp,adfernandes/pcp,adfernandes/pcp,edwardt/pcp,andyvand/cygpcpfans,prasincs/pcp,ryandoyle/pcp_original,tjanez/pcp,wuliming/pcp,mbaldessari/pcp,aeg-aeg/pcpfans,ryandoyle/pcp_original,tjanez/pcp,andyvand/cygpcpfans,mbaldessari/pcp,tjanez/pcp,edwardt/pcp,mbaldessari/pcp,aeg-aeg/pcpfans,prasincs/pcp,andyvand/cygpcpfans,edwardt/pcp,aeg-aeg/pcpfans,prasincs/pcp,aeg-aeg/pcpfans,mbaldessari/pcp,aeg-aeg/pcpfans,andyvand/cygpcpfans,prasincs/pcp,edwardt/pcp,edwardt/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,andyvand/cygpcpfans,andyvand/cygpcpfans,prasincs/pcp,tjanez/pcp,tjanez/pcp,wuliming/pcp,prasincs/pcp,aeg-aeg/pcpfans,ryandoyle/pcp_original,edwardt/pcp,edwardt/pcp,andyvand/cygpcpfans,tjanez/pcp,wuliming/pcp,wuliming/pcp,prasincs/pcp,tjanez/pcp,ryandoyle/pcp_original,aeg-aeg/pcpfans,ryandoyle/pcp_original,mbaldessari/pcp,andyvand/cygpcpfans,adfernandes/pcp,edwardt/pcp,wuliming/pcp,adfernandes/pcp,prasincs/pcp,aeg-aeg/pcpfans,tjanez/pcp