Changes to accomodate Demandware
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* Update README to reflect that messages are now being as POSTs
* Change split character
* For multiple messages, make subsequent calls in the callback of the previous call to address issue with Datagram sockets module
Modifications for POST, async, and udp
Merge pull request #4 from saksdirect/Handle_POST_and_use_async_to_send_multiple_udp_messages_with_datagram

Handle post and use async to send multiple udp messages with datagram