Re: glyph generation errors in the layout manager

[Eric Wasylishen]

> I still do wonder why the links are not blue and underlined however.

Right now I think they'll only be blue and underlined if you set those 
attributes by hand. 

What we need is for NSLinkAttributeName to imply all of the attributes in 
-[NSTextView linkTextAttributes] (blue and underlined) as well as 
NSToolTipAttributeName (with the URL as the string) if -[NSTextView 
displaysLinkToolTips] is YES. I'm not sure what the best way to do that is. 

It will probably involve using temporary attributes for the 'extra' attributes 
implied by NSLinkAttributeName, but I'm not sure where we should set/unset 
these.

Eric