serve: Don't crash when a post URL doesn't match our expectations. It can happen that a posts source's URL pattern matches that of something else, like a taxonomy page. In this case, don't crash when what we think will be integers turn out to be something else. Instead, just return that no page has been found.

#!/bin/sh

CHEF_DIR=`dirname $0`
if `hash readlink 2>&-`; then
    LINKED_EXE=`readlink $0`
    if [ -n "$LINKED_EXE" ]; then
        CHEF_DIR=`dirname $LINKED_EXE`
    fi
fi
python $CHEF_DIR/../chef.py $@