Michael H 2b35d9f012 [V3 cleanup] Respect pinned messages by default (#1596)
* This sets the default behavior for `get_messages_for_deletetion()` to not include pinned messages, while providing a way to override that

resolves #1589

* actually make commands parse for pinned deletion

* fix capitalization
2018-05-13 15:49:45 -08:00
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2018-04-02 17:17:19 -08:00