Changed ActiveFedora::File#persisted_size to simply return 0 if we're looking at a new record, rather than attempt a head request on the Ldp::Resource::BinarySource object.
Merge pull request #570 from afred/change-af-file-persisted-size

Changed ActiveFedora::File#persisted_size to simply return 0 if we're lo...
Remove alias_method_chain
Merge pull request #573 from projecthydra/single_dates

Remove alias_method_chain
Allow size to be nil if there is no content
This matches the API of ActiveFedora 7.
Use the headers to get Content-Disposition
Previously Fedora-4 didn't return Content-Disposition on the HEAD, but
it does now.
Merge pull request #574 from projecthydra/size_can_be_nil

Allow size to be nil if there is no content
Merge pull request #575 from projecthydra/use_headers_for_name

Use the headers to get Content-Disposition
Switch to fcrepo 4 beta 4
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.
Merge pull request #577 from projecthydra/removed_workarounds

Removed workaround for fcrepo4/fcrepo4#442
Refactor ActiveFedora::Cleaner
Deprecate calling .find with hash

Calling ActiveFedora::Base.find(id: “foo”) or any other usage with a
hash is deprecated. Use .where instead.