guardian/frontend — pull request #4917 by kelvin-chappell (2014-06-30 13:52:47+00:00)
Title: Fix Getting Sponsors

Sponsors now available in Sponsorship instances.

Main problem was permission to read custom fields, but this change improves DFP API exception reporting and fixes showing sponsors in the [Sponsorship Diagnostics Page](https://frontend.gutools.co.uk/analytics/commercial/sponsorships)

/cc @ironsidevsquincy