SEARCH spec shouldn't use text/query mime type

[pimterry]

Minor point, but this is a non-standard mime type (in fact when googling for Content-Type: text/query the HTTP SEARCH spec is the top result). That's not prohibited, but it seems like this spec shouldn't implicitly mint a new mime type for this query syntax, or encourage users to create their own custom mime types when it's not necessary.

The spec seems to use a SQL dialect: select surname, givenname, email limit 10. Given that, it seems like we could use application/sql instead (which is standardized).

[reschke]

It's just an example. We'll get to this later.