[antlr-interest] v3 pre-release usage data and stat collection

[John Pybus]

Terence Parr wrote:
> How do people feel about this?  Seems like it shouldn't bother  anybody 
> and it will *only* occur during the pre-release days when  we'll have 
> debugging and other stuff in there anyway.  Most people  will be waiting 
> for a full release, but the courageous and intrepid  v3 pre-release 
> users will have to hit "OK" once a week in the  GUI. ;)  Naturally if 
> you don't use the GUI, you will never see the  dialog and no data will 
> be sent.

As described, making it obvious what's about to be sent with the option 
to cancel it, and for the pre-releases only, I don't see any problems 
with it, and it should help produce a better tuned release.

John