Add PHP doc

lib/db.php

@@ -11,6 +11,10 @@
 
 namespace OCA\Documents;
 
+/**
+ * Generic DB class 
+ */
+
 class Db {
 	/**
 	 * Build placeholders for the query with variable input data 

lib/download.php

@@ -11,6 +11,9 @@
 
 namespace OCA\Documents;
 
+/**
+ * Generic download class
+ */
 class Download {
 	
 	/**
@@ -25,6 +28,10 @@ class Download {
 	 */
 	protected $filepath;
 	
+	/**
+	 * Subclassed object
+	 * @var 
+	 */
 	protected $instance;
 
 	/**

lib/download/range.php

@@ -11,6 +11,9 @@
 
 namespace OCA\Documents;
 
+/**
+ * Class processing range HTTP request (partial download)
+ */
 class Download_Range extends \OCA\Documents\Download {
 
 	// Start of the range

lib/download/simple.php

@@ -11,6 +11,9 @@
 
 namespace OCA\Documents;
 
+/**
+ * Class processing complete download
+ */
 class Download_Simple extends \OCA\Documents\Download {
 
 	public function __construct($view, $filepath){