Typo fix.
Initial implementation of validation improvement (#1).
Updating dependencies.
Fixing "since" annotation.
Adding code coverage badge.
Decoder should always return an array.
Introducing a wrapper for validation data.
Removing "Test" namespace.
Improving Decoder coverage.
Fixing Parser tests.
Simplifying README.
Fixing token test.
Fixing Builder tests.
Improving signer factory.
Mock builder is not needed there.
Adding final tests and closes #1.