1.0.8

Changelog:
https://github.com/ably/ably-java/blob/master/CHANGELOG.md#v1.0.8

Release:
Java: https://bintray.com/ably-io/ably/ably-java/1.0.8
Android: https://bintray.com/ably-io/ably/ably-android/1.0.8

Implemented enhancements:

• Ensure request method accepts UPDATE, PATCH & DELETE verbs #416

Fixed bugs:

• Error in release mode due to missing proguard exclusion #427
• Exception when failing to decode a message with unexpected payload type #425