make it compatible with zookeeper 1.4.0
use tar instead of zip
use more generic zookeeper 3.4.5
use 1.4.0
use zip
Match Priorities of ZenDiscovery
Update to 1.4.1
Fix all but one test: testMasterSwitchDuringSessionExpiration

Based on ElasticSearch commit:
https://github.com/elasticsearch/elasticsearch/commit/db54e9c2d5d5fc3405cf29a4f92ef56ccc17b4dd
Merge pull request #1 from vizanto/master

1.4.1 behaviour changed