polling2

• No API changes. Presentation/documentations changes only. Should pose no backwards compatibility risk.

• Added /docs directory written for sphinx. Setup a readthedocs site from the sphinx build.

• Moved README contents to be largely inside the /docs/.

• Updated some of the comments strings inside polling2 module.

'Begin poll(*)' message is logged when poll() is called. Hopefully this means the user doesn't feel the need to write a message before every call to poll() to indicate how long the poll() might take.

Add is_value() function. A function that allows a user to easily build a custom checker, like is_truthy(), but for any value.

Add log_error parameter to the poll signature. Enables logging of ignored exceptions.

• Fixed polling function from waiting another sleep whenever the max_tries value has reached zero.

• Remove test-only dependencies from requirements to install the package.

• No longer testing on python 2.6. Add support for travis testing on python 3.6 and pypy 3.5.

• Creation of polling2, forked from polling as previous maintainer seems to be ignoring issues and pull-requests.

• Remove `*a, **k` from poll signature. This allows Type errors to be raised if caller spells arguments into correctly, making bugs easier to find.