Added module to cross validate the data we have with official data.
Improved docs of how we import categories.
Iminstallation instructions.
Fixed broken links and simplified english.
Added missing requirement of Python 3 to docs.
Added a common settings for scheduling operations.
Made settings of scripts consistent on apps.
Added a doc file with the organization of the code.
Improved text of usage.
Fixed wrong path to settings.
Added method to compute missing contracts in database.
Added new script to update cache.
Added viewport in HTML meta for mobile.
First implementation of celery.
Improved settings for celery.
Improved tasks for contracts and laws.
Added tasks for main.
Fixed paths of crawler's data.
Removed unused prints.
Added 3 log calls to contracts crawler.