Merge pull request #47 from NicoHood/patch-2

Add a clean up delay in the CDC bootloader before disconnect to fix transient communication issues (thanks to NicoHood).

Bootloaders/CDC/BootloaderCDC.c

@@ -156,6 +156,9 @@ int main(void)
 		CDC_Task();
 		USB_USBTask();
 	}
+	
+	/* Wait a short time to end all USB transactions and then disconnect */
+	_delay_us(1000);
 
 	/* Disconnect from the host - USB interface will be reset later along with the AVR */
 	USB_Detach();