Update to Elasticsearch 1.1.0 and Hadoop 2.3.0.

Update to Elasticsearch 1.1.0 (see #401) and Hadoop 2.3.0 (see #402).

Deployed to staging: http://staging.api.lobid.org/api

Staging uses Elasticsearch 1.1.0 on aither, based on data created on the Hadoop 2.3.0 cluster.