0.6

Add CLI option to temporarily override disk watermarks
Print out any unexpected error from ES in reroute operation
Drop support for python <= 3.5

0.5

Only check user provided attributes

v0.4

Don't attempt to re-use shards already moved
Add --one-way to help where shard count is imbalanced (perhaps for a subset of indices)
Improve printing of node/shard state
Stop optimising shards when there are no longer improvements

v0.3

Add --index-name wildcard filter

v0.2

Make it possible to provide multiple --min-node and --max-node

v0.1

First pass at ES rebalancing script