Closes-Bug: #1353256. Issue : route target list was update without calling set_route_target_list. Hence _pending_field_updates was not set. This resulted in not sending correct json body in update REST API. Fix: Use vnc_api to update the route_target_list on VN. Also clear it when all route targets are removed
Closes-Bug: #1353256. Issue : route target list was update without calling set_route_target_list. Hence _pending_field_updates was not set. This resulted in not sending correct json body in update REST API. Fix: Use vnc_api to update the route_target_list on VN. Also clear it when all route targets are removed

Change-Id: I330eb388c33c2c9c9c034edd324aa30ff0c17873

Juniper/contrail-dev-controller,nischalsheth/contrail-controller,rombie/contrail-controller,vmahuli/contrail-controller,eonpatapon/contrail-controller,codilime/contrail-controller,nischalsheth/contrail-controller,nischalsheth/contrail-controller,srajag/contrail-controller,sajuptpm/contrail-controller,eonpatapon/contrail-controller,numansiddique/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,eonpatapon/contrail-controller,sajuptpm/contrail-controller,facetothefate/contrail-controller,facetothefate/contrail-controller,srajag/contrail-controller,facetothefate/contrail-controller,vpramo/contrail-controller,rombie/contrail-controller,numansiddique/contrail-controller,facetothefate/contrail-controller,rombie/contrail-controller,DreamLab/contrail-controller,vmahuli/contrail-controller,hthompson6/contrail-controller,cloudwatt/contrail-controller,cloudwatt/contrail-controller,DreamLab/contrail-controller,Juniper/contrail-dev-controller,varunarya10/contrail-controller,numansiddique/contrail-controller,codilime/contrail-controller,varunarya10/contrail-controller,nischalsheth/contrail-controller,Juniper/contrail-dev-controller,rombie/contrail-controller,sajuptpm/contrail-controller,numansiddique/contrail-controller,reiaaoyama/contrail-controller,varunarya10/contrail-controller,Juniper/contrail-dev-controller,facetothefate/contrail-controller,nischalsheth/contrail-controller,rombie/contrail-controller,srajag/contrail-controller,hthompson6/contrail-controller,nischalsheth/contrail-controller,rombie/contrail-controller,DreamLab/contrail-controller,hthompson6/contrail-controller,hthompson6/contrail-controller,tcpcloud/contrail-controller,nischalsheth/contrail-controller,Juniper/contrail-dev-controller,sajuptpm/contrail-controller,eonpatapon/contrail-controller,DreamLab/contrail-controller,vpramo/contrail-controller,varunarya10/contrail-controller,vmahuli/contrail-controller,reiaaoyama/contrail-controller,eonpatapon/contrail-controller,nischalsheth/contrail-controller,tcpcloud/contrail-controller,varunarya10/contrail-controller,hthompson6/contrail-controller,numansiddique/contrail-controller,sajuptpm/contrail-controller,tcpcloud/contrail-controller,srajag/contrail-controller,codilime/contrail-controller,cloudwatt/contrail-controller,srajag/contrail-controller,reiaaoyama/contrail-controller,cloudwatt/contrail-controller,codilime/contrail-controller,DreamLab/contrail-controller,reiaaoyama/contrail-controller,tcpcloud/contrail-controller,sajuptpm/contrail-controller,vpramo/contrail-controller,vpramo/contrail-controller,vmahuli/contrail-controller,vpramo/contrail-controller,reiaaoyama/contrail-controller,eonpatapon/contrail-controller,cloudwatt/contrail-controller,codilime/contrail-controller,eonpatapon/contrail-controller,codilime/contrail-controller,rombie/contrail-controller,vmahuli/contrail-controller