v2.1

v2.1 -- 2023-05-12

Notable changes:

• Major rework of boilerplate files, for much faster library loading.
• Fix a handful of bugs that were introduced during the earlier restructuring.
• Rename "sublibrary" to "unit" in both prose and code.
• New "smart dispatch" shell function wrapper for ubik.
• Change the default of rsync-local to be --no-delete and not --delete, to match regular rsync.
• New scripts:
  • tempy (temporary file/dir) utilities.
  • timey (date/time) utilities.
  • Sublibrary bashy-net, with a few tools extracted from the sibling project milky-cloud.