Add change to topologies to CHANGES
KNOX-428 change internal.maven.repo on master
KNOX-470 - add README and site docs for samples
KNOX-472: gateway-i18n-logging-sl4j refers to Log4jMessageLoggerFactory
KNOX-473: Configurable front end URL for simplified load balancer configuration
 KNOX-473: Configurable front end URL for simplified load balancer configuration
Merge remote branch 'origin/apache-ref/master' into dal