(#22380) Document store-usage and temp-usage

Though the default config.ini specifies the purpose of these options,
they are not in the official documentation.
Merge pull request #630 from supercow/add_storage_limits_to_documentation

(#22380) Document store-usage and temp-usage
Upgrade to latest core.match

The newer releases switch to using :guard to denote predicates inside a
match clause.
Merge pull request #635 from grimradical/upgrade-core.match

Upgrade to latest core.match