Replace 'inbox' with 'outbox' when appropriate

[Sigafoos]

As I was wholesale copying using the database interface definition as a reference while creating my Federating implementation I noticed some instances of a variable being named inboxIRI in an outbox method.

[kissen]

I believe there is a little copy/paste error in a comment as well.

diff --git a/pub/database.go b/pub/database.go
index 10b8484..f42b879 100644
--- a/pub/database.go
+++ b/pub/database.go
@@ -49,7 +49,7 @@ type Database interface {
    //
    // The library makes this call only after acquiring a lock first.
    ActorForOutbox(c context.Context, outboxIRI *url.URL) (actorIRI *url.URL, err error)
-   // ActorForInbox fetches the actor's IRI for the given outbox IRI.
+   // ActorForInbox fetches the actor's IRI for the given inbox IRI.
    //
    // The library makes this call only after acquiring a lock first.
    ActorForInbox(c context.Context, inboxIRI *url.URL) (actorIRI *url.URL, err error)
2.20.1

[cjslep]

Thanks for this! Sorry for the delay.