bugfix: fix broken prefix insertion
bugfix: fix broken prefix insertion

ninuxorg/olsrd,cholin/olsrd,acinonyx/olsrd,duydb2/olsr,diogomg/olsrd-binary-heap,duydb2/olsr,ninuxorg/olsrd,cl4u2/olsrd-wot-pgp,nolith/olsrd,diogomg/olsrd,ralisi/olsrd_cl_roam,cholin/olsrd,tdz/olsrd,diogomg/olsrd,zioproto/olsrd-gsoc2012,sebkur/olsrd,tdz/olsrd,zioproto/olsrd,tdz/olsrd,acinonyx/olsrd,ralisi/olsrd_cl_roam,diogomg/olsrd,brabander/olsr,servalproject/olsr,cholin/olsrd,diogomg/olsrd-binary-heap,acinonyx/olsrd,diogomg/olsrd,diogomg/olsrd-binary-heap,zioproto/olsrd,servalproject/olsr,nolith/olsrd,zioproto/olsrd-gsoc2012,brabander/olsr,zioproto/olsrd-gsoc2012,servalproject/olsr,diogomg/olsrd-binary-heap,ralisi/olsrd_cl_roam,duydb2/olsr,diogomg/olsrd-binary-heap,zioproto/olsrd-gsoc2012,brabander/olsr,cl4u2/olsrd-wot-pgp,nolith/olsrd,diogomg/olsrd,ninuxorg/olsrd,cholin/olsrd,nolith/olsrd,zioproto/olsrd-gsoc2012,sauloqueiroz/incremental-spf,sebkur/olsrd,cholin/olsrd,duydb2/olsr,zioproto/olsrd,nolith/olsrd,ninuxorg/olsrd,duydb2/olsr,brabander/olsr,sauloqueiroz/incremental-spf,ninuxorg/olsrd,diogomg/olsrd,ralisi/olsrd_cl_roam,sebkur/olsrd,diogomg/olsrd-binary-heap,servalproject/olsr,sebkur/olsrd,duydb2/olsr,cl4u2/olsrd-wot-pgp,zioproto/olsrd,tdz/olsrd,duydb2/olsr,sauloqueiroz/incremental-spf,servalproject/olsr,zioproto/olsrd-gsoc2012,cl4u2/olsrd-wot-pgp,acinonyx/olsrd,acinonyx/olsrd,sebkur/olsrd,duydb2/olsr,diogomg/olsrd-binary-heap,sauloqueiroz/incremental-spf,servalproject/olsr,cl4u2/olsrd-wot-pgp,diogomg/olsrd,zioproto/olsrd,tdz/olsrd,sebkur/olsrd