Stuff default tip

Don't spam as much

Be compatible with Mercurial 2.2.2. Thanks, Debian...

More Python 3 support

Remove use of enum in the calculator to drop minimum required version

Added cdf (aka Φ(x)) to the calculator, removed unneeded list comprehensions

Calculator now supports variables

Update to the calculator

Remove the license header from (LICENSE already has it)

Munge the committer's name when posting a new commit to avoid highlights

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