ISIS-695: bumping appl/archetype dependency versions

from 1.4.0 to 1.4.1 for wicket and jdo.
ISIS-695: taking archetype versions back down to 1.4.1-snapshot

were at 1.5.0-snapshot
[maven-release-plugin] prepare release simple_wicket_restful_jdo-archetype-1.4.1
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] prepare release quickstart_wicket_restful_jdo-archetype-1.4.1
[maven-release-plugin] prepare for next development iteration