OTHER: Rename XMMS_PLAYBACK_SEEK_* to something more intuitive.
OTHER: Ruby: Don't call check_int32 on C integers!
Expanded METHOD_ADD_HANDLER_INT_INT, but removed check_int32 on the second argument.
OTHER: Ruby: Use INT_MAX/INT_MIN instead of hardcoded values when checking the size of an integer.
Good eye, Tilman Sauerbeck.