basic stats
better warn on restart the entire cluster
add avg
fix remove node
add sdv
bump deps
add serverStats
sampling sending rate
make a better array cyc-queue
thread-saft queue
add recvQueue
tmp commit
Merge branch 'master' into moreStats
feat(etcd_handlers): enable CORS

When developing or using web frontends for etcd it will be necessary to
enable Cross-Origin Resource Sharing. Add a flag that lets the user
enable this feature via a whitelist.
Merge pull request #153 from philips/add-cors

feat(etcd_handlers): enable CORS
README: add justinsb/jetcd project
feat(README): add python library transitorykris/etcd-py
Blank prevValue in POST should be interpreted as a blank test-and-set, not a normal set
Merge pull request #159 from hayesgm/master

Blank prevValue should be TestAndSet with blank prevValue, not Set
Add another Java library for etcd

https://github.com/diwakergupta/jetcd