Merge tag 'pom-plugin-version-error' into develop

Hotfix pom plugin version problem
Add configuration files as resoures
Finish the first version to create new node in zk
Revise CreateGroup to extends from the util watch
Finish ZooKeeper for Group functions:

- Two helper class for connection to ZooKeeper
- Group creation, join and list
Implement a distributed lock based on zookeeper
Finish some basic setup with ZooKeeper:

- Connection to ZooKeeper
- Create ZNode and add Watcher on it
- A simple version of distributed lock based on ZooKeeper
Finish the ZooKeeper Watch test.
Change the version number to 0.1
Merge branch 'release/0.1'