clarify contractor status of Gratipay team members

[chadwhitacre]

http://www.irs.gov/uac/Employee-vs.-Independent-Contractor-%E2%80%93-Seven-Tips-for-Business-Owners

The IRS uses three characteristics to determine the relationship between businesses and workers:

• Behavioral Control covers facts that show whether the business has a right to direct or control how the work is done through instructions, training or other means.
• Financial Control covers facts that show whether the business has a right to direct or control the financial and business aspects of the worker's job.
• Type of Relationship factor relates to how the workers and the business owner perceive their relationship.

And:

Both employers and workers can ask the IRS to make a determination on whether a specific individual is an independent contractor or an employee by filing a Form SS-8, Determination of Worker Status for Purposes of Federal Employment Taxes and Income Tax Withholding [PDF, 4 pp.], with the IRS.

[chadwhitacre]

Closing in favor of #242, because it has more traction.