Parallel downloading of airbnb profiles.

To run this project you will need to:

1. Fill the method user_ids_to_download at airbnb_spider.py with the strategy you need to download the data (as a list of ids coming from a CSV file).
2. Extract an airbnb_client_id from a device using the Airbnb unofficial API (as an Android phone with the official app). Create a enviroment variable called AIRBNB_CLIENT_ID with the value of such key.
3. Execute scrapy crawl airbnb. Profiles will be saved as JSON files.