Get rid of 5.10 hack
Provide full stack traces for errors. refs TAEB/TAEB #12
Detect impartial updates and try to recover
Put handle_botl_update alongside handle_fallback where it belongs
Get rid of bitrotted IRC debug interface
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Improve menus to support user-defined selectors. refs TAEB/TAEB #10
Add ? command to Debug::Map. refs TAEB/TAEB #10