dbpmda fix for name lookup and dynamic metrics
dbpmda fix for name lookup and dynamic metrics

As reported by Nathan, this fixes a problem where dbpmda is given
a metric name, and the translation to a pmid does not follow the
pmcd-like behaviour and call on the pmda for assistance when the
name is within a pmns subtree rooted at a dynamic metric.

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