Py-retry

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* v0.6.0
* Fix inaccurate attempt counter
* logger is now optional
* Extract logging_logger
* Make decorator module optional

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* v0.5.0
* Update README.rst
* Add badges
* Configurable logger
* Update classifiers
* Remove .hgignore and .hgtags
* Faster test
* Support Python 3.4
* Add tox.ini
* Extract retry/api.py
* Require pytest
* Add test_retry.py
* Added tag 0.4.2 for changeset 315f5f1229f6

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* Version 0.4.2
* python2.6 support
* README.rst: Add installation
* Add classifiers
* Add LICENSE
* Add requirements.txt
* Fix rST h1 h2 for README.rst
* Add url
* Add README.rst
* Ignore *.egg-info
* Ignore .env
* Ignore .ropeproject
* Ignore .git
* Added tag 0.4.1 for changeset 2765d4be1b4d

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* Version 0.4.1
* Add license
* Add long_description
* Add docstring for retry()
* Added tag 0.4.0 for changeset e053cae4b105

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* Version 0.4.0
* Convert to a package
* backoff defaults to 1
* Refactor: tries defaults to inf instead of None
* Added tag 0.3.0 for changeset 60960fe42471

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* Version 0.3.0
* delay defaults to 0
* Use logging
* tries can be None, for retry forever
* Add ifmain
* Refactor
* Added tag 0.2.0 for changeset 87b6dd2bc30b