massive refactoring for programmatic control and stability

data/example/Procfile

@@ -1,3 +1,4 @@
-ticker: ruby ./ticker $PORT
-error:  ruby ./error
-utf8:   ruby ./utf8
+ticker:  ruby ./ticker $PORT
+error:   ruby ./error
+utf8:    ruby ./utf8
+spawner: ./spawner

data/example/spawnee

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+NAME="$1"
+
+sigterm() {
+  echo "$NAME: got sigterm"
+}
+
+#trap sigterm SIGTERM
+
+while true; do
+  echo "$NAME: ping"
+  sleep 1
+done

data/example/spawner

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+./spawnee A &
+./spawnee B &
+./spawnee C &
+
+wait