Version 0.3.0

##Overview

This release introduces some breaking changes to make the API a bit more readable:

• VAPID.Configuration.mocked has been renamed to VAPID.Configuration.mockedConfiguration to match other mocked methods.
• WebPushManager.init(..., logger:, ...) has been renamed to WebPushManager.init(..., backgroundActivityLogger:, ...) to better match the types of logging it is responsible for.
• The various send(...) methods now have a logger: parameter.

In addition to these API renames, this release also adds a number of improvements to documentation, tests, and logging. You can also use WebPushManager without a service as it will automatically shut down its HTTP client when it falls out of scope.

What's Changed

• VAPID Token Documentation by @dimitribouniol in #32
• Key Validation Tests by @dimitribouniol in #33
• More Test Coverage by @dimitribouniol in #34
• Mocked Configuration Rename by @dimitribouniol in #35
• Automatic Shutdown by @dimitribouniol in #36
• Better Logging by @dimitribouniol in #37

Full Changelog: 0.2.1...0.3.0