Intermediate commit
More Spring XML cleanup
Adding @Producer annotations to MessageBodyWriters
Merge pull request #163 from futures/SpringShortcuts

Spring shortcuts - looks good to me.
Merge pull request #164 from futures/ProducesAnnotations

Adding @Producer annotations to MessageBodyWriters
Minor emendation to Spring XML
FedoraFixity now streaming results
Merge pull request #165 from futures/FixityHttpIteration

FedoraFixity now streaming results

Resolves: https://www.pivotaltracker.com/story/show/61166322
Updated fcr:versions to return useful triples, and fcr:content to work with old versions.