Remove the perturb code, as it is unused stubs
Merge pull request #1 from Igalia/no_perturb

Remove the perturb code, as it is unused stubs
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This is a step towards reproducible bug reports, as the same seed could
produce different test cases as the code changes.
(Test cases are not currently fully repeatible even with constant versions
 at present).
Merge pull request #2 from Igalia/repo_info

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Updated pflua to match upstream
Merged with master