fixed 3114790 - Gamespot reviews pages badly mis-rendering
because floating point numbers format wide
Reviewed by: David Hyatt
kjs/dtoa.cpp: Imported float <--> string conversion routines
from David M. Gay. I changed this to fix warnings and avoid
colliding with names of standard library functions.
kjs/dtoa.h: Added a header I made up for dtoa.cpp
kjs/ustring.cpp:
(UString::from): Use new double to string routine (kjs_strtod).
(UString::toDouble): Use new string to double routine (kjs_dtoa).
