Rename getdata to ezk_stat.
ls2 just returns a tuple of children and stat.
Explicitly specify zookeeper's conf dir.

Otherwise if there's zookeper installed globally, then all the
instances that we start will pickup global config from /etc/zookeeper.
M-x reindent, untabify, delete-trailing-whitespace
Remove ezk:help/0.

It's burdensome to support. In fact, it's outdated already.