[texworks] Show warnings and overfill boxes

[Alain Delmotte]

>>> Running the underlying tex tools with the -file-line-error option 
>>> would help somewhat, though it would still not be completely 
>>> foolproof. Perhaps I'll try that once the scripting support is more 
>>> mature.
>> Would it be possible to have instructions on how to use, develop, 
>> implement,... scripts?
>
> Eventually..... :)
Thanks for the help to keep the manual uptodate.
I give up!

Alain