pidgin/pidgin

69b44723d52c
facebook: Make $.hugePictureUrl.uri optional

Facebook seems to randomly send null in this field sometimes. It's not
very important so it can be made optional.

This includes moving the checksum code (which was previously duplicated)
to a separate function so that there's a single null check.
[general]
shadow = 0
[colors]
black = 0; 0; 0
red = 1000; 0; 0
green = 0; 1000; 0
blue = 250; 250; 700
white = 1000; 1000; 1000
gray = 700; 700; 700
darkgray = 256; 256; 256
[colorpairs]
normal = black; white
highlight = white; blue
highlightd = black; gray
shadow = black; darkgray
title = white; blue
titled = white; gray
text = white; blue
disabled = gray; white