bug#5113: handle shell escape characters (e.g. ESC [ 0) in emacs shell

[Praveen A]

Hi,
It seems that when 'ls' is invoked with --color, it output
some escape sequences (e.g. ESC [ 0) that are not handled by
shell-mode."
Ref http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=5080#80 point 2

It would be good if emacs shell can handle these escape characters --
even if color is not displayed, the escape characters should be
hidden.

Regards
Praveen
-- 
പ്രവീണ്‍ അരിമ്പ്രത്തൊടിയില്‍
<GPLv2> I know my rights; I want my phone call!
<DRM> What use is a phone call, if you are unable to speak?
(as seen on /.)
Join The DRM Elimination Crew Now!
http://fci.wikia.com/wiki/Anti-DRM-Campaign