Updated the JVM configuration file (elasticsearch-env.sh)
Updated the JVM configuration file (elasticsearch-env.sh)

* Sync with https://github.com/elasticsearch/elasticsearch/blob/master/bin/elasticsearch.in.sh
* Set ES_HOME to the symlinked location, not the version based directory

zzugg/cookbook-elasticsearch,nbudin/cookbook-elasticsearch,gouketsu/cookbook-elasticsearch,spuder/cookbook-elasticsearch,paulczar/cookbook-elasticsearch,vacay/vcy-elasticsearch,nbudin/cookbook-elasticsearch,spuder/cookbook-elasticsearch,spuder/cookbook-elasticsearch,gouketsu/cookbook-elasticsearch,gilt/cookbook-elasticsearch,vacay/vcy-elasticsearch,gilt/cookbook-elasticsearch,gouketsu/cookbook-elasticsearch,vacay/vcy-elasticsearch,bavardage/cookbook-elasticsearch,michaeld/elasticsearch-cookbook,zzugg/cookbook-elasticsearch,gilt/cookbook-elasticsearch,zzugg/cookbook-elasticsearch,nbudin/cookbook-elasticsearch,GemHQ/cookbook-elasticsearch