Make OLSR_FOR_ALL_HNA_ENTRIES delete resistent
Make OLSR_FOR_ALL_HNA_ENTRIES delete resistent

tdz/olsrd,sebkur/olsrd,zioproto/olsrd-gsoc2012,tdz/olsrd,zioproto/olsrd,cholin/olsrd,diogomg/olsrd-binary-heap,duydb2/olsr,diogomg/olsrd-binary-heap,cholin/olsrd,diogomg/olsrd,nolith/olsrd,tdz/olsrd,zioproto/olsrd-gsoc2012,zioproto/olsrd-gsoc2012,diogomg/olsrd-binary-heap,diogomg/olsrd,sebkur/olsrd,zioproto/olsrd-gsoc2012,duydb2/olsr,ninuxorg/olsrd,nolith/olsrd,tdz/olsrd,sebkur/olsrd,zioproto/olsrd,sebkur/olsrd,zioproto/olsrd,servalproject/olsr,cholin/olsrd,diogomg/olsrd,acinonyx/olsrd,servalproject/olsr,ninuxorg/olsrd,ninuxorg/olsrd,diogomg/olsrd,diogomg/olsrd,acinonyx/olsrd,duydb2/olsr,servalproject/olsr,duydb2/olsr,ninuxorg/olsrd,zioproto/olsrd-gsoc2012,tdz/olsrd,ninuxorg/olsrd,diogomg/olsrd-binary-heap,servalproject/olsr,diogomg/olsrd,nolith/olsrd,acinonyx/olsrd,acinonyx/olsrd,nolith/olsrd,cholin/olsrd,diogomg/olsrd,servalproject/olsr,zioproto/olsrd,duydb2/olsr,diogomg/olsrd-binary-heap,sebkur/olsrd,cholin/olsrd,zioproto/olsrd-gsoc2012,duydb2/olsr,sebkur/olsrd,servalproject/olsr,duydb2/olsr,nolith/olsrd,diogomg/olsrd-binary-heap,diogomg/olsrd-binary-heap,duydb2/olsr,acinonyx/olsrd,zioproto/olsrd