[maven-release-plugin] prepare release isis-1.7.0-RC2

[maven-release-plugin] copy for tag isis-1.7.0-RC2

[maven-release-plugin] prepare release todoapp-archetype-1.7.0-RC1

[maven-release-plugin] prepare release todoapp-archetype-1.7.0-RC1

[maven-release-plugin] copy for tag todoapp-archetype-1.7.0-RC1

[maven-release-plugin] prepare release simpleapp-archetype-1.7.0-RC1

[maven-release-plugin] prepare release simpleapp-archetype-1.7.0-RC1

[maven-release-plugin] copy for tag simpleapp-archetype-1.7.0-RC1

[maven-release-plugin] prepare release isis-viewer-wicket-1.7.0-RC1

[maven-release-plugin] prepare release isis-viewer-wicket-1.7.0-RC1