float stuff again

[Benjamin Kosnik]

> WOW!  Never mind, I just did a source update and I see Benjamin has
> been fixing this issue properly... ;-)

Not really, but it'll do for now.

Anyway.

Nathan pointed out some errors in the num_get code as it currently stands 
to me in a private email. Basically, all numbers should be extracted, 
regardless of numeric_limits length limits. I suspect this will impact 
this discussion, but am unwilling to comment more before I get a chance 
to carefully review the issue. 

I'm trying to finish up the rest of the Peter Schmid locale bugs, and then 
I'll look at this again.

-benjamin