Let users choose the cause to donate the money to

[marcosmenendez]

We should find a charity or portal that gives access to the existing causes via API.

Those causes should be shown in the extension and website so the user can vote which one to donate to. If there is enough money available, donations should be done immediately to the cause with the highest voting. That cause should go back again to zero votes. Votes considered will be those of the last 30 days, provided that the cause is still open.

We should then change good-data page and extension to show those projects and let users vote as shown here:
https://app.moqups.com/thegooddata/OC4z975PTd/view
https://app.moqups.com/thegooddata/OC4z975PTd/view

In order to build that integration, check these 3 charities API to evaluate requirements feasibility:
https://api.justgiving.com/docs
https://api.ammado.com/
http://www.globalgiving.org/api/

Both the days and the donation amount should be configurable in the admin site