This post should get you seeing the wifi. I have had the same problem..
I had some more time today and read through as few other threads with similar wifi problems. I found this posted elsewhere and it worked, so I'm up and running on my edimax.
1) sudo wget -O /lib/modules/3.8.13-bone50/kernel/drivers/net/wireless/8192cu.ko https://github.com/FalconChristmas/fpp/releases/download/1.5/8192cu.ko
2) sudo depmod -a
3) sudo modprobe 8192cu
4) iwconfig (should display wifi stats)
5) Go to network settings and set wifi settings, restart network
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