dependency version update
dependency version update
Merge remote-tracking branch 'origin/dependency-update' into dependency-update

Conflicts:
	pom.xml
updated es version check in common-integration-test to match with dependency version
reverted randomizedtesting version update to match with es-test dependency.
added prefer ipv4 parameter to surefire plugin (because es integration tests do not play well with ipv6 for some reason)
updated Refresh integration test to dynamically calculate number of expected refreshes depending on shard count.
fixed tests to work with es 1.2.x