4.4.1

CHANGES:

• Document exit codes in --help (#1485 @hannesm)
• Avoid dependency on environment variable (removing MIRAGE_LOGS #1484 @hannesm)
• BUGFIX: dune.config mark "dist" as data-only-dir to allow config.ml being
  compiled (#1475 @memst)
• Allow git 3.14 (#1474 @hannesm)
• Default to best-fit allocation (#1473 @hannesm)
• FEATURE: Add a key "--delay" to all unikernels (#1472 @hannesm, fixes #1468)
• Fix Unix target dune rule (add a deps) (#1469 @hannesm)
• Optionally pass tcp in direct_stackv4v6, static_ipv4v6, generic_stackv4v6
  (#1467 @hannesm)
• FEATURE: Support mirage version indication in first line of config.ml:
  (* mirage >= 2.3.4 & < 5.0.0 *) (#1466 @hannesm, fixes #1381)
• Use \033 instead of \e in generated Makefile (fixes the output on non-Linux
  systems #1464 @hannesm)
• Adapt to mirage-logs 2.0.0 (#1460 @hannesm)
• Allow version 0.8.0 of solo5 (#1432 #1490 @hannesm @palainp)