Gallery2: IT translation fix

Change-Id: I0d9fbcb9811393132cfdfa029d1f46963e7f7be8
Gallery2: IT translation

Add 20.7, 18, 8.2 MP

Change-Id: Ibcdf8e251469632e0376d28bdbf416dfb8cb36cb
Gallery2: zh-rTW translations

PS2: add 18MP and 8.2MP translations

Change-Id: Ic26228826cbbaacf45b416eea917844191e039a8