This commit fixes an issue where when accepting a contact request
the other end would display an extra notification.
It also changes WaitOnResponse to collect results. This should make
tests less flaky, since sometimes messages are processed in different
batches.
Now we need to be though exact on what we expect from the response (i.e
use == instead of >, otherwise the same behavior applies)
This uncovered a couple of issues with messenger.Merge, so I have moved
the struct to use a map based collection instead of an array.
There was a bug on status-react where it would save filters that were
not listened to.
This commit adds a task to clean up those filters as they might result
in long syncing times.
This commit also returns topics/ranges/mailserves from messenger in
order to make the initialization of the app simpler and start moving
logic to status-go.
It also removes whisper from vendor.