Fixes running 'hg serve' with Windows executable and no explicit template path configured. PY2EXE executables don't support __file__ but do place the directory of the shared code library into sys.prefix. Fixes bug 152.

#!/bin/sh

hg init a
cd a
echo a > foo
hg add foo
hg commit -m 1 -d "0 0"
rm foo
hg remove foo
hg commit -m 2 -d "0 0"
hg export 0
hg export 1
hg log -p -r 0
hg log -p -r 1

cd ..
hg clone a b