Merge pull request #1 from ytnobody/master
Got response code 400 when receive unsubscribe request
fix for response with code 400 when unsubscribe
make the (un)subscription request work with the token in the path
New version that moves the hub.verify_token in the callback path.
The main benefit is that the token is now available when a ping is received.
There is a config flag to disable this and keep the token as the hub.verify_token query argument.
better Module::Build configuration