- classes.SiteCachePurger, NewSiteCachePurger, PurgeSiteCacheAfterCommit and
the key and limit constants stay as deprecated aliases for one release
- wireSiteCache: framework keys site_cache.* win (Journal keys ignored with
a warning); with only golem15.journal.site_cache.* set it publishes the
purger from them with a deprecation warning, so menu and FAQ saves purge
through it too
- controllers take the purger from cooler.SiteCacheFromApp
- TestSiteCacheFrameworkKeysWin; README documents both key sets
- TestSiteCachePurgeConfig: every refused configuration names its key and
never the token; https anywhere and http to loopback are accepted
- TestSiteCachePurgeRequest: the contract request, Info and Warn lines,
the 2 s timeout, a cancelled parent context, no token in any log line
- Postgres: category create, update and delete and post create, untouched
update (D-03 bytes kept), failing and unreachable purges and delete each
purge once after the commit; failed saves send none
