Add helppath variable
Add helppath variable

helppath is used in various locations throughout the pmda, dropped
by accident when merging the branches.

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