Enable Wifi for B2 and make the debian package system work again

I noticed that the Wifi did not work on my B2 (original wifi module) with your new kernel so I did some changes to the kernel config to make the ATH9K driver work with pci. When compiling I noticed that the device tree needed by the rules in the debian/rules was missing and that the installing of the uImage had gone missing when you merged in an new kernel. I also added an ignore rule to the github readme file so now you can compile with
"git-buildpackage".
Note that I am quite new to git and are not that good in debian package and building so there might definitely be something wrong with what I have done but the compiled kernel does work for me.

The change log should of course be changed to a release state