Cleanup in src/, adding namespaces, removing php closing tag and general code cleanup

src/FactorGraphs/ScheduleSequence.php

@@ -0,0 +1,25 @@
+<?php namespace Moserware\Skills\FactorGraphs;
+
+class ScheduleSequence extends Schedule
+{
+    private $_schedules;
+
+    public function __construct($name, array $schedules)
+    {
+        parent::__construct($name);
+        $this->_schedules = $schedules;
+    }
+
+    public function visit($depth = -1, $maxDepth = 0)
+    {
+        $maxDelta = 0;
+
+        $schedules = &$this->_schedules;
+        foreach ($schedules as &$currentSchedule) {
+            $currentVisit = $currentSchedule->visit($depth + 1, $maxDepth);
+            $maxDelta = max($currentVisit, $maxDelta);
+        }
+
+        return $maxDelta;
+    }
+}