Bug fixed in normalize.
Change interface of resolve_project_path.
Add add_run pipe.
Add add_conf pipe
Add untag pipe.
Add tests of add_conf, add_run and untag.
Update zsh completion.
Minor change.
remove tag.
Merge pull request #135 from kenbeese/hot-fix-normalize

Bug fixed in normalize.
Merge pull request #136 from kenbeese/some-fundamental-tools

Some fundamental tools