* APNs token handling improvements.
- Calls VerifyClient without token anyway if the APNs token cannot be retrieved.
This allows server to use discretion if needed in future. The developer will
receive the same error as before.
- Moves token formatting code to the token class itself to make the main logic
in the provider class more clear. This also eliminates duplicated code in the
sample app.
* Adds a comment about a string constant used in test.
Xiangtian Dai
e5524db414