Rebuild localization file/folder structure

* Rename `lang/` to `languages/` directory
   * Move `auto-thickbox.pot` to `languages/` directory
 * Delete `auto-thickbox-info.php` (not necessary in fact)
 * replace `dirname(plugin_basename(__FILE__)` with  `basename(dirname((__FILE__))`
 * ref. [http://codex.wordpress.org/Writing_a_Plugin#Internationalizing_Your_Plugin Internationalizing Your Plugin]
   * [http://codex.wordpress.org/I18n_for_WordPress_Developers I18n for WordPress Developers]

auto-thickbox-info.php

@@ -1,22 +0,0 @@
-<?php
-__('Overlays linked image, inline, iFrame and AJAX content on the page in simple & fast effects. (improved version of Auto Thickbox plugin)', 'auto-thickbox');
-__('Default Display Style', 'auto-thickbox');
-__('Single Image (explicitly specify a@rel attribute as needed)', 'auto-thickbox');
-__('Gallery Images (automatically set a@rel attribute in \'gallery-id\' format)', 'auto-thickbox');
-__('ThickBox on Text Links', 'auto-thickbox');
-__('Auto (automatically set a@class=&quot;thickbox&quot;)', 'auto-thickbox');
-__('Manual (explicitly specify a@class=&quot;thickbox&quot; as needed)', 'auto-thickbox');
-__('ThickBox Resources (JS, CSS)', 'auto-thickbox');
-__('Loads optimized (compressed &amp; tweaked) alternative resources (thickbox.js, thickbox.css)', 'auto-thickbox');
-__('Support', 'auto-thickbox');
-__('Contact Me', 'auto-thickbox');
-__('Donate', 'auto-thickbox');
-__('http://attosoft.info/en/', 'auto-thickbox');
-__('http://attosoft.info/blog/en/', 'auto-thickbox');
-__('http://attosoft.info/blog/en/auto-thickbox-plus/', 'auto-thickbox');
-__('Window', 'auto-thickbox');
-__('Border Radius', 'auto-thickbox');
-__('Opacity', 'auto-thickbox');
-__('Box Shadow', 'auto-thickbox');
-__('Text Shadow', 'auto-thickbox');
-?>

auto-thickbox.php

@@ -7,7 +7,7 @@ Author: attosoft
 Version: 0.6
 Author URI: http://attosoft.info/en/
 Text Domain: auto-thickbox
-Domain Path: /lang
+Domain Path: /languages
 */
 
 /*  Copyright 2010-2012 attosoft (contact@attosoft.info)
@@ -33,7 +33,7 @@ Domain Path: /lang
 
 define('AUTO_THICKBOX_PLUS_VERSION', '0.6');
 
-load_plugin_textdomain('auto-thickbox', false, dirname(plugin_basename(__FILE__)) . '/lang');
+load_plugin_textdomain('auto-thickbox', false, basename(dirname(__FILE__)) . '/languages');
 
 
 /**