Update git URLs to gitbox.apache.org (#838)
Update git URLs to gitbox.apache.org (#838)


mikewalch/incubator-fluo,ctubbsii/fluo,fluo-io/fluo,keith-turner/fluo,ctubbsii/fluo,mikewalch/fluo,keith-turner/fluo,mikewalch/fluo,mikewalch/incubator-fluo,fluo-io/fluo