ElasticSearch 0.21.0.Beta1-SNAPSHOT + Lucene 4.1.0
Fix factory flag parsing + ES integration test
Merge branch 'lucene4' - Use ElasticSearch v0.90.0.Beta1

Conflicts:
	pom.xml
Reduce a bit the few differences with upstream code
Bump to 1.1.0-SNAPSHOT
[maven-release-plugin] prepare release v1.1.0