testing version of LuaBIOS and OpenOS

people were having issues getting them to work so now we promote consistency

data/OpenOS/boot/94_shell.lua

@@ -0,0 +1,6 @@
+-- there doesn't seem to be a reason to update $HOSTNAME after the init signal
+-- as user space /etc/profile comes after this point anyways
+if require("filesystem").exists("/etc/hostname") then
+  loadfile("/bin/hostname.lua")("--update")
+end
+os.setenv("SHELL","/bin/sh.lua")