Misc fixes

* Updated build scripts to handle gitless environments a little
  better
* PDO shell plugin improvements
* More tests

tests/Resource/ResourceManagerTest.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace Spark\Resource;
+
+
+class ResourceManagerTest extends \PhpUnit\Framework\TestCase
+{
+    /**
+     * @covers ResourceManager::registerResourceType
+     */
+    public function testRegisteringResourceTypes()
+    {
+        $manager = new ResourceManager();
+        $manager->registerResourceType('foo', FooType::class);
+
+        $types = $manager->getAllResourceTypes();
+        $this->assertEquals( ['foo'=>FooType::class], $types );
+    }
+}
+
+class FooType extends ResourceType
+{
+    public function info()
+    {
+
+    }
+}