Revert to using Python 2.6 for the time being
Merge pull request #13 from edx/gabe/use-py26

Revert to using Python 2.6 for the time being
Use less disk space for acceptance tests
Merge pull request #14 from edx/gabe/use-less-disk-space

Use less disk space for acceptance tests
Grade and "viewed" distributions from courseware_studenmodule/sqoop
starting acceptance test
Remove tasks that originate from an existing sql csv dump
use overwrite parameter for everything
handle if marker table is absent
hardcodes export overwrite, rename param for import overwrite