Adding hello world plugin

plugin/hello_world/index.php

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+<?php
+/**
+ * Controller for example date plugin
+ * @package chamilo.plugin.date
+ */
+/**
+ * Code
+ */
+echo "<h2>Hello world</h2>";

plugin/hello_world/install.php

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+<?php
+/* Script to uninstall the plugin */

plugin/hello_world/plugin.php

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+<?php
+/**
+ * This script is a configuration file for the date plugin. You can use it as a master for other platform plugins (course plugins are slightly different).
+ * These settings will be used in the administration interface for plugins (Chamilo configuration settings->Plugins)
+ * @package chamilo.plugin
+ * @author Julio Montoya <gugli100@gmail.com>
+ */
+/**
+ * Plugin details (must be present)
+ */
+
+//the plugin title
+$plugin_info['title']       = 'Hello world';
+//the comments that go with the plugin
+$plugin_info['comment']     = "Shows a hello world message";
+//the plugin version
+$plugin_info['version']     = '1.0';
+//the plugin author
+$plugin_info['author']      = 'Julio Montoya';

plugin/hello_world/readme.txt

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+README
+
+This file will be linked in the plugin settings page

plugin/hello_world/uninstall.php

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+<?php
+/* Script to install the plugin */