#135 bltTree.c doesn't complile for 64-bit arch

[Trey Greer]

for 64-bit architectures (SIZEOF_VOID_P == 8),
bltTree.c doesn't compile because
START_LOGSIZE and MAX_LIST_VALUES aren't defined.

I think I fixed the problem in my source
by simply moving the
#defines for START_LOGSIZE and MAX_LIST_VALUES
out of the #if (SIZEOF_VOID_P == 8) block.
(see attached diffs)

[Trey Greer]

src/bltTree.c diffs for possible fix