Gitian Build Descriptors (Reproducible Builds)

[JeremyRand]

Users shouldn't have to trust my builds. It should be possible to reproducibly build FreeSpeechMe with Gitian (the build system used by Bitcoin and Tor), so that it is verifiable that no one introduced a backdoor to the binaries.

--- Want to back this issue? **[Post a bounty on it!](https://www.bountysource.com/issues/4066878-gitian-build-descriptors-reproducible-builds?utm_campaign=plugin&utm_content=tracker%2F408215&utm_medium=issues&utm_source=github)** We accept bounties via [Bountysource](https://www.bountysource.com/?utm_campaign=plugin&utm_content=tracker%2F408215&utm_medium=issues&utm_source=github).