Update copyright license

makefile

@@ -1,3 +1,8 @@
+#
+# Copyright (c) 2012-2014 Daniele Bartolini and individual contributors.
+# License: https://github.com/taylor001/crown/blob/master/LICENSE
+#
+
 UNAME := $(shell uname)
 ifeq ($(UNAME), $(filter $(UNAME), Linux))
 	OS=linux