* kame/pim6sd/{cfparse.y cftoken.l pim6_proto.c, pim6sd.conf.5,   rp.[ch] timer.h}: implemented static group-to-RP mapping   configuration.
* kame/pim6sd/{cfparse.y cftoken.l pim6_proto.c, pim6sd.conf.5,
  rp.[ch] timer.h}: implemented static group-to-RP mapping
  configuration.

* kame/pim6sd/{rp.c, pim6_proto.c}: sync with draft-ietf-pim-sm-bsr-03.txt
	- BSR message's Randomized Override Interval
	- BSR message is advertised to the incoming interface, too

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame