Adds:
- psycogreen is long polling callbacks required for the live chat module.
- suds-jurko is needed for the SOAP web services.
- pytz is required for time zone.
- pyusb is required to support USB communication with the Odoo Point Of Sale box (POS BOX).
- greenletis required for GEvent, it supports micro-threading and lightweight controlled concurrency.
- xlrd is required for Microsoft Excel XLS and CSV import.
Courtesy of https://github.com/Yenthe666/InstallScript/pull/62#issuecomment-338671099