[PATCH] WIP: add searching by body:

[David Bremner]

David Bremner <david at tethera.net> writes:

> ---
> this basically impliments a suggestion of Olly Betts on IRC.
>
> I don't _think_ it requires indexing, since the new queries work on the old database.
>
> In principle this should result in smaller indexes and somewhat faster
> indexing, as it doesn't add terms twice anymore.

To clarify, this is not supposed to change the behaviour of unprefixed
terms in queries: they should still match occurances in headers.  So
"notmuch search foo" should still match a message with "Subject: foo"

d