[tz] efele.net/tz maps updated

[Eric Muller]

I have updated the efele.net/tz maps (http://efele.net/maps/tz/) to be 
in sync with TZ 2015g. The new zones:

Pacific/Bougainville
Asia/Chita
Asia/Srednekolymsk
America/Fort_Nelson
Antarctica/Troll

Eric.