Compact all appropriate json-ld responses

No longer considers GET responses to be the only responses eligible for potential compaction. Now all application/ld+json responses are compacted.

Logging and bug fixes

• Workaround for a Fedora PATCH bug where delete/create of the same rdf type results in an error instead of a noop
• Use logback and LogUtil so that log levels can be easily specified by environment variables

PATCH, Persistence, and Validation

• Adds support for JSON Merge Patch
• Adds support for persisting context
• Adds support for strict jsonld context validation
• Adds support for minimal compacted representation

Substitution filter

Adds the ability to substitute terms in requests and responses, including urlencoded query params and bodies

URI filter

Adds a URI protocol filter that will set the protocol of request URLs based upon `X-Forwarded-Proto

First cut

Contains:

• jsonld compaction filter
• jsonld deserialization filter