Update the version number in the toml.

Update the copyright year in the docs.

Set a target release day.

Updated @rstoneback's affiliation.

Fixed the file date for F10.7 'daily' data, which can be obtained from the file as done in other files.  Simplified the code by creating a function to do this and inform users of any changes in a way that still allows the files to be processed.

Docstrings that contain backslashes require an 'r' at the start.