Log Message:
Update gnome-mag to 0.16.3.
Based on PR#45812 by Patrick Welche.

While here, add colorblind applet support.

What's new in gnome-mag-0.16.3:

* Fixes:
	Fix bug #630877 (Li Yuan)
	Fix build with gcc 4.4.3 adding explicity -lm

* Translations:
	Carles Ferrando (Catalan (Valencian)), Sahran (UG)

What's new in gnome-mag-0.16.2:

* Fixes:
	Code cleanups (Romain Perier, Stéphane Maniaci)
	Remove G*_DISABLE_DEPREATE

* Translations:
	Gil Forcada (ca), Petr Kovar (cs), Thomas Thurman (en@shaw), Kristjan
	SCHMIDT (eo), Mattias Põldaru (et), Fran Diéguez (gl), Dirgita (id),
	Takeshi AIHANA (ja), Shankar Prasad (kn), Matej Urbančič (sl)