AUTHORS: Update for the last six months' work
AUTHORS: Update for the last six months' work

New "Principal Authors" (upgraded from "Patch Contributors"):

Bartosz Dziewoński
James D. Forrester

New "Patch Contributors", with thanks:

Alex Monk
Antoine Musso
eranroz
Gilles Dubuc
Juliusz Gonera
kaldari
Kunal Mehta
Ricordisamoa
rillke
suchetag
Željko Filipin

Change-Id: I610fbe62574017e1828163df8718019163429250

wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui,wikimedia/oojs-ui