Limit releases from rev-deps search to "latest"

[rwstauner]

Is this the correct filter?

Currently the reverse_deps query returns multiple versions of any given release.
I think we only want the most recent version.

Are there are other filters that should be added here?
I wasn't able to write a test for authorized... should that be here, too?

[monken]

You can get the same result already by sending a request body with {"filter":{"status":"latest"}} to that endpoint. Do we really want to limit that endpoint to latest releases?

[rwstauner]

You're probably right.
It's easy to add the "latest" filter if that's what you want,
but probably difficult to remove it if that isn't what you want.

I guess it seemed odd to get duplicates or even old ones that no longer apply,
but that's really just a particular use-case.
You can get the same sort of results doing a "normal" release search,
so a user should be used to specifying "latest" when that is in fact what they want.

I may modify the tests to confirm the behavior.

[rwstauner]

I rebased this branch and it is now just additional tests.