elasticsearch client must be explicitly installed as it's an
optional backend requirement. this patch installs the client when
installing elasticsearch
Change-Id: I534cf0c78ab1fe7d309ef5f808bbe7b5422b403e
Fedora-21 does not have openjdk-1.7.0 it has only 1.8.0.
This change also fixing the no op statement in the configure.
Change-Id: I6012aeb17b8e8fafa37d48aa29482702fa3491fd