Allow handler to set HTTP headers.
Merge pull request #30 from Gizra/http-headers

Allow handler to set HTTP headers.

For example: $this->updateEntity() will $this->setHttpHeaders('Status', 201);
Properly check access to entity and property using the wrapper.
Merge pull request #29 from Gizra/entity-access

Properly check access to entity and property using the wrapper.
Remove access test that was moved to own class.
Improve PHPdocs.
Allow Update resource (via PUT).
Minor line break cleanup.
Merge branch '7.x-1.x' into multiple-bundles