Bug 1047177 - Treat v4 certs as v3 certs (1/2).  r=keeler.

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extra : rebase_source : 4cfb69672aa54274bb4ee850f23f0bbbe8e9e49f
 Bug 1047177 - Treat v4 certs as v3 certs. Tests (2/2).  r=keeler.

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extra : rebase_source : 58be8a1ac652636fea80e83fc8eae2b7092c6edd