tree.js: getHeadVersions and _maxI listen for end
tree.js: getHeadVersions and _maxI listen for end

Netsend/PerspectiveDB,Netsend/persdb,Netsend/persdb,Netsend/PerspectiveDB,Netsend/mastersync,Netsend/mastersync,Netsend/PerspectiveDB,Netsend/persdb,Netsend/mastersync