For the submodules that have some kind of release (tags), they were
updated up to the most recent release. Otherwise, the submodule was
updated to the latest commit.
This updates the submodules for autosuggestions, completion,
syntax-highlighting and the prompts async, powerlevel9k and pure.
All submodules that have TAGs/Releases were updated to their latest
TAG/release, except for syntax-highlighting because it's latest
release/TAG is from more than one year ago, and the project seems to be
well maintained but without releases.
ad522a0 driver: Fix printing error message to file when cannot resolve highlighters directory location
73cb832 'main': Highlight mismatched 'if'/'fi'.
be083d7 driver: Improve «unhandled ZLE widget 'foo'» error message.
237f89a 'main': Don't consider «$*» a glob.
835fec7 workaround for PAT_STATIC bug in zsh
9523d6d tests: zsh 5.4-to-be compatibility: Set a new "I am shooting myself in the foot" option.
aac4a44 driver: Fix duplicated slash in error message
4f49c4a docs: Update zplug install instruction
5efd062 tests: Add a regression test for issue #392 (aliases beginning with a '+' are lost).
67be621 tests: Move some code in preparation for next commit. No functional change.
74949c2 driver: Don't undefine aliases that begin with a '+', to workaround an upstream bug.
8d5afe4 driver: Be immune to 'alias' having been redefined.
76ea9e1 'main': Highlight possible history expansions in double-quoted strings.
50fbb5f docs: Update Homebrew link.
2dce602 driver: Be immune to weird aliases in the calling scope.
347cf0e 'main': Add regression test for previous commit.
5625e30 'main': Fix bug: no start_pos=$end_pos in comment short path
fed37a9 'main': Fix a bug concerning command word with embedded colon-space sequences.
626c034 Add FreeBSD port
3d74aa4 Add Fedora package
5398949 changelog: Update for changes pulled out of 0.5.x.
