Update as a satellite port of `converters/mule-ucs'.
This commit increments PORTREVISION which corresponds to
the effect of `patch-aa' in the master port.
- Update to 0.84. - Maintainance MASTER_SITES and remove an unneed setting of
`ALL_TARGET'. - Sort rules of the port's custom `do-build' target. - Use
%%PORTDOCS%% in `pkg-plist'.