Remember search parameters between invocations

[kenstir]

If I do a Search and I make selections, they should be remembered the next time I go to do a Search.

But do not remember the "search words"; that feels like an invasion of privacy that would make users uncomfortable.

These selections should be stored using Valet (which stores it in the iOS keyring, unlocked when the phone is unlocked).

The settings stored should be

"search_org" e.g. "Bogart Library" (or maybe shortname "ARL-ATH")
"search_format", e.g. "All Books" (or maybe searchFormat "book")
"search_type", e.g. "Title"

[kenstir]

Noted in Beta feedback

[kenstir]

Update: Don't remember the search_org if the search_org is set as a user setting.