Fixes to the `cache` Jinja tag. * Thread safety, since it stores common data potentially coming from pages baked at the same time. * Correctly capture and restore modifications made to the execution context (e.g. sources used in the captured section).

#!/bin/sh

CUR_DIR="$( cd "$( dirname "$0" )" && pwd )"
CHEF=${CUR_DIR}/../bin/chef
OUT_DIR=${CUR_DIR}/../piecrust/res/messages
ROOT_DIR=${CUR_DIR}/messages

$CHEF --root=$ROOT_DIR bake -o $OUT_DIR
rm ${OUT_DIR}/index.html