- update to 1.6.3:
* Revert the change notifications that were using /dev/watch_queue.
* Apply the change notifications that use pipe2(O_NOTIFICATION_PIPE).
* Allow "keyctl supports" to retrieve raw capability data.
* Allow "keyctl id" to turn a symbolic key ID into a numeric ID.
* Allow "keyctl new_session" to name the keyring.
* Allow "keyctl add/padd/etc." to take hex-encoded data.
* Add "keyctl watch*" to expose kernel change notifications on keys.
* Add caps for namespacing and notifications.
* Set a default TTL on keys that upcall for name resolution.
* Explicitly clear memory after it's held sensitive information.
* Various manual page fixes.
* Fix C++-related errors.
* Add support for keyctl_move().
* Add support for keyctl_capabilities().
* Make key=val list optional for various public-key ops.
* Fix system call signature for KEYCTL_PKEY_QUERY.
* Fix 'keyctl pkey_query' argument passing.
* Use keyctl_read_alloc() in dump_key_tree_aux().
* Various manual page fixes.
- spec-cleaner run (fixup failing homepage url)