integrate fcrepo-object-serialization into the default REST API
Merge pull request #55 from futures/integrate-object-serialization

integrate fcrepo-object-serialization into the default REST API
Cleaning unused imports
Small code cleanups
More minor cleanup
make sure creating objects with fcr:new creates the object at the right path level.
exclude ISPN cache stores that don't contain our key..
poke object graph through the REST API
use the default min binary size.
merge fcr:graph back into the FedoraNodes
add application/xml as an appropriate format for the describe response
protect our jcr: and fedora: properties from modification via sparql-update
fix up http response codes to match spec