greytip/zookeeper repository overview

This image was built using mbabineau/zookeeper-exhibitor as the source.

The changes made are:

• jessie:8.2 instead of 7.8
• zookeeper 3.4.7 instead of 3.4.6
• curl permanently installed for metadata introspection
• hostname override using EC2 metadata (local-ipv4)
• servo is enabled