ISIS-756: improvements for JRebel support

specifically:
* updated the pom.xml for archetypes, adding -P jrebel antrun:run
* updates to .launch files for archetypes, using properties to parameterize the rebel.xml file in the dom project
* auto-invalidate cache if fail to retrieve association in metamodel
ISIS-756: bumping version for example/applications

just noticed that had been left at 1.4.0-SNAPSHOT; moved to 1.4.2-SNAPSHOT
ISIS-695: updating STATUS

... was not updated after previous 1.4.0/1.4.1 release

Also, updated pom.xml; mvn-tool-plugin should not be in the -P released profile