Fix for JDK Double.parseDouble infinite loop

[Alan Bateman]

Andrew Haley wrote:
> The post on
> http://www.exploringbinary.com/java-hangs-when-converting-2-2250738585072012e-308/ 
>
>
> describes a (on first sight) trivial bug when parsing strings into
> Java Double objects.
Thanks for the analysis and patch. We also have a fix from Dmitry 
Nadezhin that he posted here some time ago (but fell through the cracks 
for some reason). I expect this issue will be fixed soon.

-Alan