More reliable tests for log transmission

Log messages can land in non-sequential order due to be the receive/send
routine. this fix makes it so we reorder all the messages received to
verify them first.
Raising send timeout to 5s on HTTP(s) drains

When network or drains show bad behaviour temporarily, low timeouts we
currently have (1 second) ends up killing connections and raising the
retry count of frames. When massive losses are seen, it makes it
difficult to put the blame on logplex's speed at sending logs, or the
drains consumption (or network).

By raising the timeout a bit, we should reduce the reconnection rate and
at the same time make it harder to blame logplex (as an individual node)
for the problems.

This should not have a super significant impact on the drop rate,
however, but possibly a noticeable one.
Upgrade to redgrid 1.0.3

Redgrid 1.0.3 adds tolerance for DNS disconnections and configuration
reloading.
v69.2 to v69.2 upgrade path
v69.2 to v69.3 actually good upgrade path

Was missing a path addition for backoff to be loaded, causing a node
failure.