Added support for embedded objects in play graph
Show objects every time they appear; expand the first time
Space nodes based on numbers of descendants
Collapsing previously embedded nodes

rather than giving them no children at all
Handling XMLLiterals in play
Merge pull request #22 from theodi/embedding-objects-in-play

Embedding objects in play.

Thanks @JeniT, if you would like committer status, we can do that too.
Update EARL report, removing Green Turtle, Any23 and Java-RDFa