USB Composite device demo based on USBDevice

Dependencies:   USBComposite mbed

Under construction!

Revision:
0:3b440c0010f7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sun May 31 15:39:17 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/cbbeb26dbd92
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