v1.0.12

#79 Implement an interface for mocking in UnitTests
#59, #63 Include response content in WebPushException & Improve the error message when the request fails
#64 Add cancellation taken to Async methods and remove duplicate methods.
#60 Add GCM key when calling FCM endpoint if VapidDetails are not provided.
#71 202 HTTP response causes WebPushException
Allow Vapid header to include expiration.
#53 - Allow HttpClient to be passed via constructor.

v1.0.11

Merge pull request #34 from web-push-libs/issue-32

Fix support for net45+

v1.0.10

#28 Replace AesFastEngine with AesEngine.

v1.0.9

#5 Include push subscription details in WebPushException
#7 Improve HttpClient Usage
#8 - Add SendPushNotificationAsync Method.