Merge pull request #62 from stample/master

The large majority of changes here don't depend on the SparqlUpdate changes recently. I am for making changes to SPARQL update if the little functionality for PATCH in ldp can be maintained.
Merge branch 'ldp'
ldp now adds {<.> ldp:created <>} to created resources. This fixes tests to acknowledge this. It could be argued that it should only add that info to the Header with a Link relation.
reduction of compiler warnings
added some comment on LDP classes naming issues
update to play 2.2-SNAPSHOT
add very initial aspect oriented programming with Advices to local file store