clean the u-boot directory as well or else updated builds dont always work after a make clean (due to the config changing)
Correct the default `make` instructions
Merge pull request #18 from avsm/master

Improve make instructions
Add a Dockerfile
Merge pull request #19 from avsm/master

Add a Dockerfile
Dockerfile: remove the image, as it requires a privileged container for the loop device
Use the max memory feature

See http://wiki.xen.org/wiki/Do%EF%BB%BFm0_Memory_%E2%80%94_Where_It_Has_Not_Gone
Merge pull request #21 from Chris00/patch-1

Use the max memory feature
Merge pull request #20 from MagnusS/master

Add support for driver firmware in Makefile, Cubieboard LEDs, wifi/ad-hoc