Updated colorbox library to 1.6.4

uw_base_profile.make

@@ -2140,7 +2140,7 @@ libraries[codemirror][directory_name] = "codemirror"
 ; http://www.jacklmoore.com/colorbox/
 libraries[colorbox][download][type] = "git"
 libraries[colorbox][download][url] = "https://git.uwaterloo.ca/libraries/colorbox.git"
-libraries[colorbox][download][tag] = "1.6.1"
+libraries[colorbox][download][tag] = "1.6.4"
 
 ; ColorPicker
 ; http://www.eyecon.ro/colorpicker/