add pdf and mobi libraries

inc/3rdparty/libraries/send2kindle/MOBIClass/FileInt.php

@@ -0,0 +1,40 @@
+<?php
+
+/**
+ * Description of FileInt
+ *
+ * @author Sander
+ */
+class FileInt extends FileObject {
+	private $data;
+
+	/**
+	 * Make an integer to be stored in a file
+	 * @param int $n
+	 */
+	public function __construct($n = 0){
+		parent::__construct(4);
+		$this->set($n);
+	}
+
+	public function get(){
+		return $this->data;
+	}
+
+	public function set($value){
+		$this->data = intval($value);
+	}
+	
+	public function serialize() {
+		return $this->intToString($this->data);
+	}
+
+	public function unserialize($data) {
+		__construct($this->toInt($data));
+	}
+
+	public function __toString(){
+		return "FileInt: {".$this->intAsString($this->data)."}";
+	}
+}
+?>