move sanity checks about ordering on nodename / associations to query builder

[dbu]

move the sanity checks from #540 to the query builder instead.

@dantleech do we have the document metadata available in the query builder?

[dantleech]

You have the DocumentManager:

phpcr-odm/lib/Doctrine/ODM/PHPCR/Query/Builder/BuilderConverterPhpcr.php

Line 83 in 429ae2d

DocumentManager $dm,

[lsmith77]

I think this is the last issue before we can tag 1.2 stable.