Fix: use absolute value of hash before doing modulo operation in Hit Ratio multi-class tie breaking.
Merge branch 'master' of https://github.com/0xdata/h2o
Enable load-balancing by default (again).
Revert to old rebalancing logic: #chunks = 4*cores, but only rebalance if #chunks < cores.
Add Beta->ReBalance helper to re-chunk a frame.  Slow implementation, to be improved in PUB-500.
Merge branch 'master' of https://github.com/0xdata/h2o