Odoorpc

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- IMP: Add support for Odoo 16.0 (excepting reports)
- IMP: Add support for API key login
- IMP: Add support for contextlib.closing to handle the logout automatically
- FIX: Accept 0 values for required integer/float fields

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- FIX: Support for Python 3.10+
- FIX: Add support for Odoo 15.0 (excepting reports)

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- IMP: integrate pre-commit with some hooks such as black, flake8, pyupgrade
and isort + reformat the whole code base
- FIX: int, float, etc type conversion might raise TypeError, catch em all
- FIX: odoorpc.db.drop: remove existing user session to avoid HTTP session error
- FIX: Do not create a fake 'name' field on proxy models (common 'display_name'
field handles already that case)

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- IMP: Support added for Odoo 12.0
- IMP: Convenient script 'run_tests_docker.sh' to run tests locally against
the official Odoo Docker image
- IMP: Implement 'with_context(...)' and 'with_env(...)' methods on the Model
class (they were only available on recordset until now)
- IMP: Logger added (all requests, params + response) + Documentation

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- FIX: Perform HTTP requests with or without a leading slash in the URL
- FIX: Handle RPCError exceptions with either bytes or unicode message
- FIX: Sphinx doc: could not import extension sphinx_ext.doctest_custom

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- IMP: OCA rebranding
- IMP: Drop support for Python 3.2 and 3.3
- IMP: Support added for Odoo 11.0