LICENSE.md: bring year up-to-date

LICENSE.md

@@ -3,7 +3,7 @@ to be made under the same license. Any exception to this general rule is listed
 
 	/****************************************************************************
 	 *
-	 *   Copyright (c) 2012-2014 PX4 Development Team. All rights reserved.
+	 *   Copyright (c) 2012-2015 PX4 Development Team. All rights reserved.
 	 *
 	 * Redistribution and use in source and binary forms, with or without
 	 * modification, are permitted provided that the following conditions
@@ -38,4 +38,4 @@ to be made under the same license. Any exception to this general rule is listed
   - PX4 middleware: BSD 3-clause
   - PX4 flight control stack: BSD 3-clause
   - NuttX operating system: BSD 3-clause
-  - Exceptions: Currently only this [400 LOC file](https://github.com/PX4/Firmware/blob/master/src/lib/external_lgpl/tecs/tecs.cpp) remains LGPL, but will be replaced with a BSD implementation.
+  - Exceptions: Currently only this [400 LOC file](https://github.com/PX4/Firmware/blob/master/src/lib/external_lgpl/tecs/tecs.cpp) remains LGPL, but will be replaced with a BSD implementation.