Initial alpha release from https://github.com/WhiteHouse/petition/tree/7.x-1.x/modules/custom/govdelivery
Fixed send message and send subscription and modified the queue queries. Subscriber API is still broken.
Added external cron to settings page.
Added external cron interval to odm settings.
Annotated a couple bugs for future fixes.
Initial Backport and code reorganization from the D7 module. Further dev is needed to fix the D7 queries and verify logic.
Improvements for asynchronous processing.
Added default category assignment and variables to the config page.
read category_id from topic rather than hardcoding
Added drush functions for testing subscriber api subscriptions. Added queue_check function to validate cross queue depencies.
