[ESS] Problem with ess tab-completion when max.print option is set too low

[Stephen Eglen]

 > The rcompgen completions are a lot better. The biggest bug they fix is 
 > that filename completion actually works on Windows. Maybe they could be 
 > used only if available? At the very least it would be nice to have that 
 > code as part of ESS so that one only needs to customize some variable to 
 > turn it on.

That sounds like a good idea!  we can look into this.  

Stephen