Trackpy

This is a minor release with two major new features: parallel processing to speed up feature-finding, and a new method for locating features in bright-field microscopy. There is also an overhaul of the walkthrough and other tutorials, and compatibility with the latest version of Pandas (0.25.1).

See the "What's new in the package" page in the [documentation](http://soft-matter.github.io/trackpy/v0.4.2/whatsnew.html) for a full list of changes.

This is a minor release with some important fixes. Additionally, PIMS is no longer a required dependency, which makes installation easier.

This is a major release that includes new choices for linking and feature-finding algorithms, as well as many performance increases and clean-ups. It is recommended for all trackpy users, but may require minor changes to existing code, as detailed below.

See http://soft-matter.github.io/trackpy/v0.4/whatsnew.html for a full overview of the changes.

This is the first trackpy release to support Python 3.6. It is identical to v0.3.2 except for a minor fix for Python 3.6 compatibility that does not change any scientific functionality.

This release contains a number of bugfixes and enhancements: pair correlation functions, faster mean squared displacement calculations, and an increase of feature finding precision. See http://soft-matter.github.io/trackpy/v0.3.1/whatsnew.html for a full overview of the changes.