Set-up the initial structure.
Updated the git ignore file. Updated requirements to include pytz (for time-zone processing). Added necessary __init__.py files.
Removed some unused imports. Split-out the class for conversion into functions. Refactored a lot of code around this. Instead of creating new categories, use existing Zinnia categories, and assume that drupal has unique category names in all vocabularies. Added documentation for default argument values. Separated list of users to import from user mapping.