Enforcer exclusion not inherited

[hinerm]

For some reason, one line of the pom-scijava maven enforcer exclusion is not being inherited - even though this project's pom.xml directly inherits from pom-scijava and no intermediate pom declares any other enforcer config.

As a result, Java 6 must be used to build, or -Dscijava.enforce.skip must be specified.

[dscho]

I encountered similar symptoms with other projects. The reason is that you can only override the enforcer configuration in child POMs, not augment it. Which is really too bad.

[ctrueden]

@dscho The strange thing is: nothing in any child project overrides the configuration from pom-scijava whatsoever. Yet this one rule is just... absent.