* australasia (Pacific/Apia, WS): Move DST data from Zone to Rule lines.

This doesn't change the output, but is shorter and easier to follow.
Trim and adjust commentary a bit.
New link Indian/Alfred_Faure for the Crozet and Scattered Islands.

(Thanks to Tobias Conradi and Antoine Leca.)
* africa, zone.tab (Indian/Alfred_Faure): New link.
* antarctica: Adjust commentary accordingly.
* NEWS: Document this.