Added missing copyright headers and updated dates on others.

cmd/mtdbconverter/main.go

@@ -1,4 +1,4 @@
-// Copyright 2014 by Sascha L. Teichmann
+// Copyright 2014, 2015 by Sascha L. Teichmann
 // Use of this source code is governed by the MIT license
 // that can be found in the LICENSE file.