MODE-1372 Updated the internal Change events and ChangeSet(s) to contain the primary type and the mixin types of the node involved (4.0)

[hchiorean]

Also, updated the ModeShape Event API to expose this information as per the JSR-333 spec.

This might cause merge conflicts with #998.

[hchiorean]

Rebased on MODE-1683 & fixed conflicts. This should be merged after #998

[rhauch]

I get this failure every time I run against 'master' (which does include #998):

Failed tests:   shouldReconcileDeltaInCluster(org.modeshape.jcr.journal.ClusteredJournalTest): expected:<2> but was:<0>

junit.framework.AssertionFailedError: expected:&lt;2&gt; but was:&lt;0&gt;
    at junit.framework.Assert.fail(Assert.java:50)
    at junit.framework.Assert.failNotEquals(Assert.java:287)
    at junit.framework.Assert.assertEquals(Assert.java:67)
    at junit.framework.Assert.assertEquals(Assert.java:199)
    at junit.framework.Assert.assertEquals(Assert.java:205)
    at org.modeshape.jcr.journal.ClusteredJournalTest.shouldReconcileDeltaInCluster(ClusteredJournalTest.java:85)

[hchiorean]

that's very weird because all tests pass locally for me. I'll try making the changes to MODE-1683 as we've discussed and then rebase & fix conflicts for this. Hopefully that will prevent the error that you're seeing.

[rhauch]

The problem appears to be related to the previous PR #998. I know I built locally before merging that, but I'm not sure what happened there. After merging #998, I seem to always get the above error. I've added another commit to 'master' that merely @ignore the problematic test.

So, after doing that, this PR builds cleanly and I rebased and merged into the 'master' branch.