
Allow the local repo to use HTTPS:// instead of HTTP://. This is currently default off since handling the self-signed certificate is not currently graceful. In the future, the SPKI that AndroidPinning uses should be included in the repo meta data, then when someone marks a repo as trusted, that local repo's SPKI should be added to the list of trusted keys in AndroidPinning. fixes #2960 https://dev.guardianproject.info/issues/2960