Sample ECC keys and message do now work.

Import and export of secret keys does now work.  Encryption has been
fixed to be compatible with the sample messages.

This version tests for new Libgcrypt function and thus needs to be
build with a new Libgcrypt installed.

g10/gpg.c

@@ -1959,6 +1959,9 @@ main (int argc, char **argv)
                     NEED_LIBGCRYPT_VERSION, gcry_check_version (NULL) );
       }
 
+    /* Use our own logging handler for Libcgrypt.  */
+    setup_libgcrypt_logging ();
+
     /* Put random number into secure memory */
     gcry_control (GCRYCTL_USE_SECURE_RNDPOOL);