Merge pull request #18 from diegoherranz/master

Fix USB boot code build instructions
Merge pull request #19 from diegoherranz/master

Add reference to Compute Module in USB boot Readme
Add installation target to makefile
Add usb boot from buildroot image
Fix markup
Update to reflect renamed .elf file
Change buildroot config name
Change the 2nd stage to download the data over USB2.0 This accelerates
the download of code 10x
Merge branch 'master' of https://github.com/raspberrypi/tools
Add buildroot.elf installation and cmdline parameters
Test code system to test a compute module system using a Raspberry Pi
usbboot: Use "%ld" in printf for ftell return value (long int).
usbboot: Add uninstall target to Makefile plus .PHONY targets.