Products.zpsycopgda

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- Re-released under the Zope Public License (ZPL) version 2.1

- Updated package layout and name to conform to current Zope standards

- Added compatibility with Zope 4 and Zope 5

- Removed compatibility with Zope 2 and Zope 3

- Added unit and functional tests

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- Removed ZPsycopgDA dependencies on deprecated (Python or Zope) features.

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- Added all the supported isolation level options
- Fixed pool bugs (psycopg issues 123, 125, 142)

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- Make this and egg.