tests/test-basic

Polish patchbomb script.

diffstat output is now a non-default option.

The hgrc file can now contain default information for the patchbomb
script.

Date generation is fixed.

#!/bin/sh

mkdir t
cd t
hg init
echo a > a
hg add a
hg commit -m test -d "0 0"
hg history
hg manifest
hg cat a
hg verify