Changed relay nodes to open a connection once to the server rather than for every connection.
Chris's formatting changes to receive.c
updated relay node code. now does hostname resolution of server.
updated relay node code
relay node will pass on button and sonar statuses now
relay node code that passes packet from meter to server. needs more thorough testing.
added code that parses incoming packets from meters. still needs work.
server code added - midsemester demo
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