ynu_mpu add vertical guidance

Fork of YNU_MPUd2 by hige dura

Revision:
0:9aa9be24636a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sun Jan 06 06:37:09 2013 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/cd19af002ccc
\ No newline at end of file