7.1.0-beta

• [ADDED] authenticateUser, authorizeChannel and authorizePresenceChannel
• [ADDED] sendToUser and sendToUserAsync
• [ADDED] terminateUserConnections and terminateUserConnectionsAsync
• [FIXED] get_object_vars() error on /src/Pusher.php
• [DEPRECATED] socketAuth and presenceAuth in favour of authorizeChannel and authorizePresenceChannel
• [DEPRECATED] Internal functions make_request and make_batch_request that were exposed as public