Files should be independent of the ActiveFedora::Base object.
This enables files to be created and saved without a container.
Factor out the Ldp::Orm class
Don't get the HEAD of a non-existant resource
Merge pull request #576 from projecthydra/check_existance

Don't get the HEAD of a non-existant resource
Merge pull request #572 from projecthydra/files_stand_alone

Files should be independent of the ActiveFedora::Base object.
Merge pull request #578 from projecthydra/no_ldp_orm

Factor out the Ldp::Orm class
Change deprecation horizon to 10.0
Merge pull request #580 from projecthydra/deprecations

Change deprecation horizon to 10.0
Removed workaround for fcrepo4/fcrepo4#442
Also removed the skipped concurrent write spec because we are now doing
SPARQL insert which doesn't have the version conflict problem.