Updated dash in License from U+2013 to U+002D to improve markdown parsing.

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2014–2016 Alamofire Software Foundation (http://alamofire.org/)
+Copyright (c) 2014-2016 Alamofire Software Foundation (http://alamofire.org/)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal