Removes ParameterCollection
Renames classes to better convey functionality
Updates Credentials class and interface
Adds new dev dependencies
New exception
New exception
New request adapters (will be broken out later)
Updates to the renamed classes
New RequestInterface
Updates existing classes and tests
Removes, ignores composer.lock
Adds PHP 5.6 to .travis.yml
Changes validateSignature to isValid
Shuffles lib organization, adds interfaces
Adds guzzlehttp as dev requirement
Adds doc blocks
Adds guzzlehttp outgoing request adapter
Adds package suggestions related to request adapters
Updates README
Updates license year