Bug 989564, Part 1: Decode basic constraints extension using mozilla::pkix::der, r=keeler

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extra : rebase_source : 89560218a69596868cb8a93c69ee72656b0abf77
Bug 989564, Part 2: Remove CERTCertificate dependency from CheckBasicConstraints, r=keeler

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extra : rebase_source : c0ce62f44109cbcdf65da770a1154814733a6b49
Bug 1006041: Use mozilla::pkix::der for decoding the extended key usage extension, r=keeler

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extra : rebase_source : b4b62f117d653784eb6ad058554faf520a1bd90b
Bug 1010581: Document Expect/Match/Skip terminology in mozilla::pkix::der and make that code more consistent, r=keeler

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extra : rebase_source : 12aa2e1e9eed4f32a75732a65cbfaba9789d5d39
Bug 1006958: Use mozilla::pkix::der to parse certificate policies instead of NSS, r=keeler

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extra : rebase_source : fde88efebc1025bc4f825aa38df809d04b1b250a
Bug 1010634, Part 1: Fix compiler warnings in certverifier, r=cviecco

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extra : rebase_source : f8d925f042040368b038b62bc1d0c9d4d6d04618