ISIS-839: updating pom.xml for Wicket viewer to reference non-SNAPSHOT parents.
ISIS-839: fixing RAT errors for Wicket viewer.
[maven-release-plugin] prepare release isis-viewer-wicket-1.6.0-RC1
[maven-release-plugin] prepare for next development iteration
ISIS-839: updating simpleapp archetype for 1.6.0
ISIS-839: updating todoapp archetype
[maven-release-plugin] prepare release simpleapp-archetype-1.6.0-RC1
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] prepare release todoapp-archetype-1.6.0-RC1
[maven-release-plugin] prepare for next development iteration
ISIS-839: updating STATUS for 1.6.0 release