Astrophot

What's Changed
* remove old docs, update to readthedocs by ConnorStoneAstro in https://github.com/Autostronomy/AstroPhot/pull/171
* update LM optimization ConnorStoneAstro in https://github.com/Autostronomy/AstroPhot/pull/172
* update links in readme by ConnorStoneAstro in https://github.com/Autostronomy/AstroPhot/pull/177

Major changes include:
- switch to readthedocs documentation
- Levenberg-Marquardt now handles masks better and gives more reliable chi^2 values (fitting itself has only minor changes)
- parameter initialization now has better function which doesnt rely on isophote extraction, therefore works in more cases
- Tutorials have been updated to run faster and be more clear about typical workflows
- Some docs latex have been fixed

**Full Changelog**: https://github.com/Autostronomy/AstroPhot/compare/v0.15.4...v0.16.0

What's Changed
* Fix mask treatment for lm covariance matrix update by ConnorStoneAstro in https://github.com/Autostronomy/AstroPhot/pull/176

Similar problem from previous patch, except for the uncertainty update step.

**Full Changelog**: https://github.com/Autostronomy/AstroPhot/compare/v0.15.3...v0.15.4

What's Changed
* mask now handled in lm by ConnorStoneAstro in https://github.com/Autostronomy/AstroPhot/pull/175

Fixed a bug in how the LM optimizer treats masks. Also made a new autogenerated mask for cases where the sub models in a group model have non fully overlapping fitting windows, in which case there are some pixels that can be safely ignored as they are irrelevant for the fit.

**Full Changelog**: https://github.com/Autostronomy/AstroPhot/compare/v0.15.2...v0.15.3

What's Changed
* Create dependabot.yml by ConnorStoneAstro in https://github.com/Autostronomy/AstroPhot/pull/161
* Move to readthedocs, now using pre-commit code cleaning by ConnorStoneAstro in https://github.com/Autostronomy/AstroPhot/pull/169
* pre-commit linting, readthedocs webpage by ConnorStoneAstro in https://github.com/Autostronomy/AstroPhot/pull/170

New Contributors
* dependabot made their first contribution in https://github.com/Autostronomy/AstroPhot/pull/162

**Full Changelog**: https://github.com/Autostronomy/AstroPhot/compare/v0.15.1...v0.15.2

What's Changed
* Setting nan pixels to mask automatically in target image by ConnorStoneAstro in https://github.com/Autostronomy/AstroPhot/pull/159

This is a minor patch to help users avoid this issue in the future

**Full Changelog**: https://github.com/Autostronomy/AstroPhot/compare/v0.15.0...v0.15.1

Major change to how PSF is handled. New system gives PSF models a special place and behaves more intuitively. Big thanks to wmwv for suggesting this conceptual change!

PRs
* Change star nomenclature to point source by ConnorStoneAstro in https://github.com/Autostronomy/AstroPhot/pull/126
* PSF revamp! by ConnorStoneAstro in https://github.com/Autostronomy/AstroPhot/pull/157


**Full Changelog**: https://github.com/Autostronomy/AstroPhot/compare/v0.14.3...v0.15.0