[imp] wvWare problem again

[Anil Madhavapeddy]

> After applying the patch, the only return I get is:
>
> string(0) ""

You'll need to do some more digging ...

Put some more var_dump()s into the msword.php driver - before the exec()
call, after the exec() call - is it failing for some reason?

Change the Horde::getTempFile() calls to add a 'false' parameter to the
end, which will prevent the temporary files from getting cleaned up.
Does the temporary file output of the call to wvHtml have any error
messages in it?

Anil