do not duplicate master_ph in config
bugfixes, config reload, and haiku
list and ack circonus alerts
whitespace and indenting
stick to the same kind of JSON as everything else
simplify logic for empty list of alerts
include all elements in listing

When you write:

  my $x = $a, $b, $c;

It is equivalent to writing:

  my $x = $c;

Presumably the intent here is to include all three data in the
message, so I have built them into one ugly string for now.
do not peek into http response objects