olsrd-quagga: Fix memory leak when adding and deleting routes
olsrd-quagga: Fix memory leak when adding and deleting routes

diogomg/olsrd-binary-heap,tdz/olsrd,nolith/olsrd,nolith/olsrd,zioproto/olsrd,sebkur/olsrd,ninuxorg/olsrd,diogomg/olsrd-binary-heap,cholin/olsrd,sebkur/olsrd,diogomg/olsrd,ninuxorg/olsrd,cholin/olsrd,zioproto/olsrd,diogomg/olsrd-binary-heap,zioproto/olsrd,sebkur/olsrd,cholin/olsrd,nolith/olsrd,nolith/olsrd,diogomg/olsrd-binary-heap,diogomg/olsrd-binary-heap,diogomg/olsrd,sebkur/olsrd,ninuxorg/olsrd,tdz/olsrd,diogomg/olsrd,diogomg/olsrd,diogomg/olsrd-binary-heap,cholin/olsrd,tdz/olsrd,tdz/olsrd,zioproto/olsrd,zioproto/olsrd,diogomg/olsrd,diogomg/olsrd,sebkur/olsrd,sebkur/olsrd,tdz/olsrd,ninuxorg/olsrd,ninuxorg/olsrd,cholin/olsrd,diogomg/olsrd-binary-heap,diogomg/olsrd,nolith/olsrd