USB device stack

Dependents:   mbed-mX-USB-TEST1 USBMSD_SD_HID_HelloWorld HidTest MIDI_usb_bridge ... more

Issue: Escape key not supported in USBKeyboard class

Hello there, the Escape key in the USBKeyboard is not supported. Please implement the fix given in this comment: http://developer.mbed.org/questions/4203/How-do-I-send-an-ESC-character/