Dynesty

Changed
- Added support for periodic boundary conditions.

- Set up basic tests for continuous integration.

Changed
- Added a logo!

- Updated and reorganized documentation and demos.

- Added proper support for gradients.

- Changed defaults and added several "quality of life" improvements.

Changed
- Updated documentation.

- Modified re-scaling behavior to better deal with inefficient proposals.

- Improved stability of the current ellipsoid decomposition algorithm.

- Added new `'auto'` options and changed a number of defaults to make things
easier for general users.

- Plotting now defaults to 95% credible intervals instead of 68%.

Changed
- Added in a fast approximation option for `jitter_run` and `simulate_run`.

- Modified the default stopping heuristic. It now evaluates significantly
faster but is a less accurate probe of the "true" KL divergence.

- Modified `'rwalk'` behavior to better deal with edge cases.

- Changed defaults so performance should now be more stable (albeit slower)
for the average user.

- Improved the stability of bounding ellipsoids.

- Fixed performance issues with `'rslice'` and `'hslice'`.

- Small plotting improvements.

Changed

- Fixed a minor bootstrapping bug that affected performance for some users.

- Fixed a serious bug associated with the new singular decomposition algorithm
and changed its behavior so it no longer auto-kills user runs when it fails.

Changed
- `dynesty` is now on PyPI!