Add Compress and Archive Dir tasks.
Merge branch 'master' of github.com:materialsproject/fireworks
Use base_name to be consistent with shutil.make_archive.
Add an immensely powerful PyTask.
Improve doc.
py3k fix for builtins.
Make compression and format defaults.
Merge pull request #37 from materialsvirtuallab/master

Add CompressDir and ArchiveDir tasks.