Qsonic

Fixed resolution matrix coadding.
**Full Changelog**: https://github.com/p-slash/qsonic/compare/v0.6.0...v0.6.1

What's Changed
* Read reso after by p-slash in https://github.com/p-slash/qsonic/pull/50
* add error on mean_delta to var_delta variance in picca_continuum.VarL… by p-slash in https://github.com/p-slash/qsonic/pull/51
* fast cubic spline interpolator implemented and used in mean continuum… by p-slash in https://github.com/p-slash/qsonic/pull/54
* Eta fitting by p-slash in https://github.com/p-slash/qsonic/pull/53
* Simplify vardelta err method by p-slash in https://github.com/p-slash/qsonic/pull/55
* Broadcast from master node by p-slash in https://github.com/p-slash/qsonic/pull/56
* flux stacker in picca continuum enabled and saved to attributes file by p-slash in https://github.com/p-slash/qsonic/pull/57


**Full Changelog**: https://github.com/p-slash/qsonic/compare/v0.5.2...v0.6.0

What's Changed
* picca_continuum.VarLSSFitter calculated the mean of the variance bin. Pipeline variance defaults are increased. qsonic-calib rounds the indices when stacking by p-slash in https://github.com/p-slash/qsonic/pull/49


**Full Changelog**: https://github.com/p-slash/qsonic/compare/v0.5.1...v0.5.2

bug fix for spectrum.mean_resolution

Fix optional catalogs that are needed for BAL mask