Added 'colorcolumn' option. Partly by Gregor Uhlenheuer.
diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
index b151eb7..5ff1e3b 100644
--- a/runtime/doc/todo.txt
+++ b/runtime/doc/todo.txt
@@ -1098,12 +1098,8 @@
- Conceal feature: no update when moving to another window. (Dominique Pelle,
2010 Jul 5) Vince will look into it.
Patches to possibly include:
-- Patch for vertical line at certain column position, 'guidecolumn' option.
- (Pankaj Garg, 2009 Apr 14, aka Lone, Apr 15)
- Update 2009 May 2, 'margincolumn'
+- 'colorcolumn': make it local to window.
Alternative patch. (2010 Feb 2, Gregor Uhlenheuer, update 2010 Jul 12)
- Fix by Lech Lorens, Apr 19
- When there are multiple columns it makes sense to call it 'guidecolumn'
- Another patch for Javascript indenting. (Hari Kumar, 2010 Jul 11)
Needs a few tests.
- Add different highlighting for a fold line depending on the fold level.