UnevenColumnsAcross doesn't take color into account

[yfeldblum]

From #14:

This patch seems to work fine in the usual case.

ruby-1.9.2-p180 :007 > a = %w(Blah a b c ad e fs f g)
 => ["Blah", "a", "b", "c", "ad", "e", "fs", "f", "g"] 
ruby-1.9.2-p180 :008 > puts ui.list(a, :uneven_columns_across, 3)
Blah  a   b
c     ad  e
fs    f   g
 => nil 

However, when there's bold formatting on the first row, it doesn't seem to work right:

ruby-1.9.2-p180 :009 > a = [ui.color("Blah", :bold), ui.color("a", :bold), ui.color("b", :bold), "c", "ad", "e", "fs", "f", "g"]
 => ["\e[1mBlah\e[0m", "\e[1ma\e[0m", "\e[1mb\e[0m", "c", "ad", "e", "fs", "f", "g"] 
ruby-1.9.2-p180 :010 > puts ui.list(a, :uneven_columns_across, 3)
Blah  a  b
c             ad         e        
fs            f          g        
 => nil 

One specific use case for this issue is the knife-rackspace library. Example.

[JEG2]

I believe the code I just pushed resolves this issue. Let me know if that's not the case.

[yfeldblum]

Worked for me.

Thank you sir!