TCP socket remoteAddress is backwards

[natevw]

Using the script in #618 I noticed something funny in the output:

connection 114.4.168.192 29188

…the remote machine's IP address is 192.168.4.114!

The logic looks right to me:

• firmware binding at https://github.com/tessel/firmware/blob/eedc9430e9fa4072562fc62b25f739b3e635b051/src/tm/tm_net.c#L407
• feeds into https://github.com/tessel/runtime/blob/a70d9353bad8c4f606e11306cad5ce4debb16b34/src/colony/modules/net.js#L609

UPDATE: and when testing against colony posix I see the expected:

connection 127.0.0.1 32512

…so I almost wonder if either ntohl is broken when compiling firmware, or if (wouldn't be surprised…) the CC3K library structs themselves are not [consistently?] in network endianness.