Log Message:
Update to 0.400000

Upstream changes:
0.400000  2022-03-13 22:16:13-04:00 America/New_York

    [ BUG FIXES ]
    * PR #1634: Fix CI push setting to run tests on branches with / in the
      name (Stefan Hornburg - Racke)
    * PR #1641: Fix uninitialized warnings from parsing routes with mixed
      regex/splats (Russell @veryrusty Jenkins)

    [ ENHANCEMENTS ]
    * PR #1627: Set minimum Perl to 5.10.1 (Peter Mottram - SysPete)
    * PR #1643: Set minimum Perl to 5.12.5 (Jason A. Crome)

    [ DOCUMENTATION ]
    * PR #1633: Fix YAML example in the tutorial (Tina Müller)
    * PR #1644: Add deprecation policy to docs; link git guide (Jason A.
      Crome)