tessel/firmware — pull request #87 by kevinmehall (2014-10-03 19:01:25+00:00)
Title: Fix MAC address formatting

MAC addresses are formatted in hex with colons.

```
% arp 192.168.128.79
Address HWtype HWaddress Flags Mask Iface
192.168.128.79 ether 08:00:28:58:6a:93 C wlan0
% tessel wifi -m
TESSEL! Connected to TM-00-04-f0009a30-00699742-58ce9249.
INFO Requesting MAC Address...
INFO Mac Address: 08:00:28:58:6a:93