Added collectd_facts module (just version for now).

collectd/collectd_facts

+#!/bin/sh -e
+. "$1"
+
+fail ()
+{
+    echo "{\"failed\": true, \"msg\": \"$1\"}"
+    exit
+}
+
+which collectd || fail "Can't find collectd executable."
+
+collectd -h | sed -n 's/[a-zA-Z]*\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/{"changed": false, "ansible_facts": {"nginx": {"major":\1, "minor":\2, "patch":\3}}}/p'