pimd v2.2.1

Version 2.2.1: April 20, 2015

Bug Fixes

• Fix another problem with issue #22 (reopened), as laid out in issue #37. This time the crash is induced when there is a link down event. Lot of help debugging the propblem by @mfspeer, who also suggested the fix -- to call pim_proto.c:delete_pim_nbr() in vif.c:stop_vif() instead of just calling free()
• Fix issue with not checking return value of open() in daemonizing code in main(), found by Coverity Scan.
• Fix issue with scoped phyint in config.c, found by Coverity Scan. The masklen may not be zero, config file problem, alert the user.