Log Message:
Update elasticsearch to 1.4.0.

Update elasticsearch to 1.4.0.

Changes in 1.3.3:
- More efficient networking
- Fix for possible corruption on shard recovery
- Fix for corruption when upgrading old indices

  Full changelog:
  http://www.elasticsearch.org/downloads/1-3-3/

Changes in 1.3.4:
- Fix for 100+ shards node management

  Full changelog:
  http://www.elasticsearch.org/downloads/1-3-4/

Changes in 1.4.0beta1:
- Better node stability through reduced memory usage.
- Better cluster stability through improved discovery algorithms.
- Better detection of corrupted data through checksums.
- groovy replaces mvel
- cors disabled by default (closes XSS vulnerability)
- New experimental shard-level query cache
- Three new aggregations
- get-index API
- Improvements to document indexing and updating

  Full changelog:
  http://www.elasticsearch.org/downloads/1-4-0-Beta1

Changes in 1.4.0:
- HTTP pipelining
- Lucene upgrade API

  Full changelog:
  http://www.elasticsearch.org/downloads/1-4-0