[Conkeror] [PATCH] Show errors from completers, etc.

[David Kettler]

[I responded to Jeremy previously, but omitted the list.]

Jeremy Maitin-Shepard wrote:
 > In some with regard to completions I had specifically intended that an
 > exception being thrown would just result in no completions being
 > generated.

I wanted this behaviour for the xpath index webjumps (see the later
patch).  In that case they're not useful without the completion data,
which must be separately downloaded, so I thought the error message
being displayed was more important in that case.

Note that this patch just displays the error; it doesn't terminate the
minibuffer read and the result is still just that there are no
completions.

regards, David.