Crontab fixes

• Fixed issue where container exited immediately on scheduled run scenario.
• Added log redirect to file instructions for single run scenario

v2.1

Fixed issue with cron scheduling not working

v2.1-alpha

Fixes:

• Issues with non-existent crontab file for root user
• Issue with organize not being found in path when run from cron
• Changes format of cron string passed to docker run

Release 2.0

Updates base image to use one of the official Python images.

Initial stable release

v1.0

Added pip upgrade command