update tests after changing archival code.
test-archive now contains tests for archive command.
#!/bin/shhg init acd ahg init becho x > b/xecho '# should print nothing'hg stecho '# should print ? b/x'hg st b/xhg add b/xecho '# should print A b/x'hg stecho '# should forget b/x'hg forgetecho '# should print nothing'hg st b