GET /Surveys- http://api.spectrumsurveys.com/suppliers/v2/Surveys
GET /Surveys/:Survey_id - http://api.spectrumsurveys.com/suppliers/v2/Surveys/:Survey_id
GET /Surveys/:Survey_id/PSIDRef - http://api.spectrumsurveys.com/suppliers/v2/Surveys/:Survey_id/PSIDRef
GET /Surveys/:Survey_id/PSIDEligible - http://api.spectrumsurveys.com/suppliers/v2/Surveys/:Survey_id/PSIDEligible?PSID=%PSID%
...