Bug 1005198: Make it easy to create test certificates in GTest tests, r=keeler

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extra : rebase_source : 0b1ec263a5a1ce1856afb12f11ea4c35c2aa55d0
extra : histedit_source : 40a3a3fc1993de0fcdeb5593a1a1df4dc94832b8
Bug 1005208: Rename issuerKeyHash to keyHash in mozilla::pkix's pkixocsp.cpp, r=mmc

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extra : rebase_source : ede4ed17cb56e3e52325ecadc2c5ded33c4a6013
extra : histedit_source : b727000e81bbc8afa6b9f8188b97065f59da45ad
Bug 1005256: Improve parameter validation in mozilla::pkix::der::Input::GetSECItem, r=mmc

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extra : rebase_source : 93b65e103c86747ddaf463e639aacffdf7ccb08f
extra : histedit_source : 10ef0ab13fb9de710ea3c589600db4632f9cf4a0
Bug 1005309, Part 1: Improve type conversion and error checking for hashing done in mozilla::pkix's pkixocsp.cpp. r=mmc

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extra : rebase_source : 79c248ebc45d722249ae7adbbd2527dc9985f6f0
extra : histedit_source : 8ea66942cec4252d9d7e625da22b5ad9964485a1