Updated license terms [skip ci]

COPYING → LICENSE

-Copyright (c) 2016 Idiap Research Institute, http://www.idiap.ch/
+Copyright (c) 2018 Idiap Research Institute, http://www.idiap.ch/
 Written by Andre Anjos <andre.anjos@idiap.ch>
 
 Redistribution and use in source and binary forms, with or without
@@ -24,4 +24,4 @@ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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