Add static keyword to all project globals whose scope should be restricted to the same module as they are declared in.

Tighten up the HID class bootloader code slightly, document that it currently exceeds 2KB of bootloader space for all models other than the Series 2 USB AVRs.

Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c

@@ -55,6 +55,7 @@ USB_ClassInfo_CDC_Host_t VirtualSerial_CDC_Interface =
 			},
 	};
 
+
 /** Main program entry point. This routine configures the hardware required by the application, then
  *  enters a loop to run the application tasks in sequence.
  */