Updated copyright year.

include/libssh2.h

@@ -40,7 +40,7 @@
 #ifndef LIBSSH2_H
 #define LIBSSH2_H 1
 
-#define LIBSSH2_COPYRIGHT "2004-2012 The libssh2 project and its contributors."
+#define LIBSSH2_COPYRIGHT "2004-2014 The libssh2 project and its contributors."
 
 /* We use underscore instead of dash when appending DEV in dev versions just
    to make the BANNER define (used by src/session.c) be a valid SSH