Problem with the plain editor on 2.6.1

[Steve Dahl]

In both JSPWiki 2.6.0 and 2.6.1, I have users of our wiki who are  
having problems with the plain page editor.

While editing in the plain editor, if you start a link using the [ ]  
syntax, a list pops up showing all pages that match what you've typed  
so far. For members of the Admin group, this looks like an  
interesting feature. But for all other users of our wiki, a dialog  
pops up saying something to the effect of "No permission to use this  
AJAX method!".

It doesn't seem to matter which browser (so far tested on Firefox,  
IE, and Safari). But it does matter whether the user is Admin or not.

This seems to only affect the plain editor. WikiWizard and FCK are  
not causing problems for our users.

We're running JSPWiki in Tomcat 5.5, accessing it by way of Apache2  
in order to use HTTPS.

While we'd like to have a fix for this problem, we'd also like to  
know whether there's a way to turn off that pop up list altogether,  
especially if turning it off is much easier than finding out why  
we're having problems with it.

Thanks.