Update Copyright year

Author: peterdettman

crypto/src/AssemblyInfo.cs

@@ -18,7 +18,7 @@
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("The Legion of the Bouncy Castle Inc.")]
 [assembly: AssemblyProduct("Bouncy Castle for .NET")]
-[assembly: AssemblyCopyright("Copyright (C) 2000-2015")]
+[assembly: AssemblyCopyright("Copyright (C) 2000-2017")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]