cowdancer, cowbuilder, and qemubuilder repository: Changes to 'master'

[Junichi Uekawa]

Rebased ref, commits from common ancestor:
commit 8dc23f7cec58602fe19a6f9ec2e8f3cbfb2b5bc3
Author: Junichi Uekawa <dancer at netfort.gr.jp>
Date:   Wed Mar 18 23:14:09 2009 +0900

    test log update

commit eebdcbad586f56f7eb8d4de0990d50118916774b
Author: Junichi Uekawa <dancer at netfort.gr.jp>
Date:   Wed Mar 18 23:05:05 2009 +0900

    refactor rm -rf out from the normal code path.