Pyramid-zcml

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- Add tox.ini for testing.

- Pyramid 1.1 test suite fixes.

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- Add ``wild_domain`` argument to authtkauthpolicy directive.

- Depend on ``pyramid>=1.0b1`` (``wild_domain`` argument to authtktauthpolicy
directive).

- Make tests pass on Pyramid 1.0; squash testing deprecation warnings.

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- Initial release, all ZCML directives broken out of Pyramid core.