mbed working as a midi device through usb D-, D+

Dependencies:   USBDevice beep mbed

Revision:
0:f24bc002bd2e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBDevice.lib	Tue Nov 19 03:23:23 2013 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/USBDevice/#335f2506f422