Move syslog_aggregator property out of diego namespace in template [delivers #77827762]

Signed-off-by: Amit Gupta <agupta@pivotallabs.com>
Merge remote-tracking branch 'origin/develop' into develop
Bump gorouter

Bump cloudfoundry/gorouter:
  Michael Fraenkel:
     Switch to cloudfoundry/dropsonde ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/36044713 )
Create final release 0.416 for build 170