Committed from github

see https://github.com/Harvey-OS/harvey/pull/36

Thanks to hbarn

Change-Id: I91020b85b670ef45044e32c23ac04121c74f81dd

README

@@ -23,7 +23,7 @@ or if you use homebrew (https://http://brew.sh/)
 
  	brew tap sevki/gcc_cross_compilers
 	brew install sevki/gcc_cross_compilers/x86_64-elf-gcc
-	brew install qemu
+	brew install qemu go
 	export TOOLPREFIX=x86_64-elf-
 
 GERRIT