Daemonflux

What's Changed
* Exposed chi2 function by afedynitch in https://github.com/mceq-project/daemonflux/pull/7
* New covariance matrix for the **uncalibrated** case that tries to better mimic the error estimate from DDM+GSF. To disable this behavior pass `Flux(..., uncorrelated_hadr_errors=True, ...)`.


**Full Changelog**: https://github.com/mceq-project/daemonflux/compare/v0.7.0znd...v0.8.0

v0.7.0znd
Identical to release v.0.7.0

Daemonflux has been updated to reflect the latest changes in the paper. We decided to remove the DEIS data from the default calibration set. The previous calibration can be accessed by passing calibration_set='with_deis' to Flux(). At the end of the example ipynb one can see the differences between the sets.

The version has been bumped up to 0.7 to reflect changes to the default physics output.

Two interface bugs were fixed. Thx to marialiubarska for reporting

What's Changed
* Afedynitch/issue3 by afedynitch in https://github.com/mceq-project/daemonflux/pull/4
* Fixed interpolation range by afedynitch in https://github.com/mceq-project/daemonflux/pull/5


**Full Changelog**: https://github.com/mceq-project/daemonflux/compare/v0.6.0...v0.6.1

What's Changed
* Update to 230323 by afedynitch in https://github.com/mceq-project/daemonflux/pull/2
* There was a bug where `mu+` + `mu-` would not add up to `muflux` at low energies. The summed quantities were correct, i.e. `muflux` or `muratio`, `numuflux`, etc. This has been fixed.
* Based on some comments on our paper draft, we found an issue with L3+C systematics treatment in the fit. The resulting changes to the flux are minimal but numerically visible.
* The README is now more verbose about the description of the different quantities and units.
* A reference and link to the paper with all the details has been added to the README, as well.

**Full Changelog**: https://github.com/mceq-project/daemonflux/compare/v0.5.1...v0.6.0

This is the first release of daemonflux ahead of the paper appearance on arxiv. The code automatically downloads the spline and calibration tables.

Updates to the covariance matrix construction of the uncalibrated model.