String change for zoom options dialog in Universal Access

[Joseph Scheuhammer <clown alum mit edu>]

I would like to request a string freeze break for the Universal Access 
zoom options UI.  Details and patch at:
https://bugzilla.gnome.org/show_bug.cgi?id=684029

The gray-scale slider in the "Color effects" tab is labelled "Color".  Other
sliders in the dialog append a colon after their label, e.g., 
"Brightness:".
For consistency, the label on the gray-scale slider should be "Color:".

--
;;;;joseph.


'A: After all, it isn't rocket science.'
'K: Right. It's merely computer science.'
             - J. D. Klaun -