Valerian 0.5.0

Source only: this release has no installer files. Valerian installers are sold at https://12hobbies.studio/projects/valerian/, or you can build it from source: https://qisback.github.io/valerian/getting-started/build-from-source/

Pre-1.0 early software: expect rough edges.

• New photometry outputs: valerian photocal --report DIR now also writes zero points, a calibrated star catalogue, the limiting magnitude and an astrometric residual map.
• Fixed: valerian deconvolve no longer leaves black cores and dark crescents around bright stars, and --mode round now makes stars rounder.
• Fixed: the manual no longer says the Seestar S50 writes a row-order card (it does not), valerian photocal on a sparse field gives a clear message instead of "registration failed", and valerian stack on a folder no longer prints "read 1 frames".
• The GitHub repository carries the source; installers are sold at 12hobbies.studio, and a Build from source page covers Windows, macOS and Linux.