make manifest friendlier switch to using context code ..which uses first parent by default show file hashes only with debug switch show permissions with verbose fix up tests

#!/bin/sh

mkdir t
cd t
hg init
echo a > a
hg add a
hg commit -m "test" -d "1000000 0"
hg verify
hg parents
hg status
hg rollback
hg verify
hg parents
hg status