* much simplified DereferenceStatusAncestors(), also handles edge cases now
* perform status acceptibility check before handling even as forward
* don't further dereference ancestors if they're up to date
* call enrichStatusSafely() directly to ensure we get error messages
* change getStatusByURI() semantics to return error + old model on failed update, fix deref ancestor to check for staleness before refetch
* perform a nil-check on the status.Local variable, in case it hasn't been set on new status attempting refresh
* more consistently set returned parent status, don't check if updated
* only home-timeline statuses if explicitly visible AND not explicitly invisible!
* fix broken test now that status acceptibility checks happen on forwarded statuses
0f7a2024c3