specify some versioning requirements
minor: gemspec quotes
drop specific versioned yard dependencies, whatever issue required this seems to no longer be affecting it.
api_hammer for gem:available_updates task
ruby's URI is kind of broken. use Addressable::URI instead.
omit scheme / host if not given ... this isn't a valid uri for signing but the error raised isn't good so just let that go elsewhere
Merge branches 'RackTestSigner', 'no_plaintext_nonce', 'addressable', 'faraday_require' and 'faraday_mutate_request' into HEAD