fdroidserver 0.7.0

[tsparber]

• Have you followed the guidelines for contributing?
• Have you checked that there aren't other open pull requests for the same formula update/change?
• Have you built your formula locally with brew install --build-from-source <formula>, where <formula> is the name of the formula you're submitting?
• Does your build pass brew audit --strict <formula> (after doing brew install <formula>)?

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Please also tick in #6408 (if built successfully).
I did not have any problems building the old version 0.4.0 on sierra.

[eighthave]

I'm an upstream dev and the original creator of this recipe, and it looks good to me! Thanks for doing it.

[dunn]

Thanks! Merged as d30b6b6.