Add beeminder recipe

This is an unofficial module that allows you to update Beeminder, a goal visualization service. You can integrate it with Org. The blog post is at http://www.philnewton.net/blog/beeminder-for-emacs/ , and the repository is at https://github.com/sodaware/beeminder.el . I contribute to it.
Merge pull request #1668 from sachac/beeminder

Add beeminder recipe