10669: Improve error reporting in test case.
10669: Test that SafeHTTPCache is actually used.
10669: Only delete *.tmp when cleaning old cache files.
10699: Delete >2-day old cache entries.
10669: Bust old (possibly broken) cache entries by naming our files *.tmp
10669: Robust cache for httplib2
Do not let golang.org/x/tools/cmd/bundle get ahead of Ruby bundler.
No issue #
Fix test broken by change of default behavior in arv-keepdocker. refs #8567
If API server doesn't publish supported Docker image versions, make that anerror instead of a warning (can be overridden with --force-image-format)refs #8567
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