ACPI 3.0 support is nearing completion in both the iASL
compiler and the ACPI CA core subsystem.

Fixed a problem in the ToDecimalString operator where the
resulting string length was incorrectly calculated. The
length is now calculated exactly, eliminating incorrect
AE_STRING_LIMIT exceptions.

Fixed a problem in the ToHexString operator to allow a
maximum 200 character string to be produced.

Fixed a problem in the internal string-to-buffer and
buffer-to-buffer copy routine where the length of the
resulting buffer was not truncated to the new size (if
the target buffer already existed).
Signed-off-by: Len Brown <len.brown@intel.com>