Fixes auto-bind behaviour (bug #187)
IPv4 route: refuse to re-forward local packets

Packets originating from same host and being bounced are not to be
forwarded.
removed comments
Merge branch 'master' into picoMESH
IPv4 forward: protect from multiple forward

same packet now cannot be forwarded twice in a row.
Merge branch 'master' into picoMESH
added free of input buffer in olsr_scheduled_output error condition