Bug 1077926: Make test certificate generation faster by reusing key, r=keeler

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extra : rebase_source : 8734920020e0889ea6cac1e878b182326bbf81d6
Bug 1078108: Use a longer OCSP response validity period in tests, r=keeler

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extra : rebase_source : 3115275b2b1c5337cbea0fd43a2221fcd54dadc1
extra : source : bb5694e268255b6549ccaaaddca74fbb83d4bda1