diff --git a/README.md b/README.md
index bff0827..3eae496 100644
--- a/README.md
+++ b/README.md
@@ -160,7 +160,7 @@ It's much used in children's controllers, like headers and footers.
      public function index() {
        $variable = 'value';
 
-       $this->template = 'default\common\header.twig';
+       $this->template = 'default/common/header.twig';
 
        $this->render();
      }
@@ -655,6 +655,8 @@ In a sample case, we have this controller:
   * **config_seo_url:** Indicates if SEO URL routes is enabled. *(boolean)*
   * **config_mail_protocol:** Define the method of mail library use to send e-mails (mail or smtp values only). *(string)*
   * **config_compression:** Output gzip compression value [0-9]. *(integer)*
+  * **PatternSiteTitle:** Used to `$this->document->setTitle()` function, replaces %s to this value. *(string)*
+  * **date_timezone:** Define the default timezone to entire application. *(string)* 
 
 ### Recommended settings SQL Query
 
diff --git a/system/captcha/autoload.php b/system/captcha/autoload.php
index 3169d49..fa3b57f 100644
--- a/system/captcha/autoload.php
+++ b/system/captcha/autoload.php
@@ -7,7 +7,12 @@ class Captcha {
 	protected $numChar = 6;
 	protected $background = 'black';
 
-	function __construct($width = NULL, $height = NULL, $numChar = 6, $background = 'black') { 
+	function __construct($width = NULL, $height = NULL, $numChar = 6, $background = 'black') {
+
+        if(!extension_loaded('gd')){
+            throw new \Exception("The captcha function requires GD extension on PHP!");
+        }
+
 		$this->numChar = $numChar;
 		$this->background = $background;
 		$pos = 'ABCDEFGHJKLMNOPQRSTUWVXZ0123456789abcdefhijkmnopqrstuvwxyzABCDEFGHJKLMNOPQRSTUWVXZ0123456789'; 
@@ -25,6 +30,18 @@ class Captcha {
 		$this->height = ($height != NULL) ? $height : $this->height;
 	}
 
+	public function __help() {
+	    $helpTxt =
+            array(
+                "version" => "1.0",
+                "Description" => "Captcha module.",
+                "Use" => 'Declare new Captcha($width, $height, $numChar, $background) on a variable, use $variable->getCode() to obtain a plain text captcha code (prefer pass thos code to a SESSION) and return $variable->showImage(\'format\').',
+                "Formats" => "bmp, jpg, png, wbmp and gif."
+            );
+
+	    var_dump($helpTxt, true);
+    }
+
 	function getCode(){
 		return $this->code;
 	}
diff --git a/system/image/autoload.php b/system/image/autoload.php
index 08b0871..01af6f1 100644
--- a/system/image/autoload.php
+++ b/system/image/autoload.php
@@ -5,6 +5,10 @@ final class Image {
     private $info;
 		
 	public function __construct($file) {
+        if(!extension_loaded('gd')){
+            throw new \Exception("The image function requires GD extension on PHP!");
+        }
+
 		if (file_exists($file)) {
 			$this->file = $file;
 
@@ -180,4 +184,3 @@ final class Image {
 		return array($r, $g, $b);
 	}	
 }
-?>
\ No newline at end of file
diff --git a/system/system.php b/system/system.php
index 395db1d..f127013 100644
--- a/system/system.php
+++ b/system/system.php
@@ -89,6 +89,29 @@ class startEngineExacTI {
 			}
 		}
 	}
+
+	public function setTimezone($utc) {
+
+	    try {
+            $tzc = @date_default_timezone_set($utc);
+            if (!$tzc){
+                throw new \ErrorException($utc. " not found in PHP Compiler.");
+            }
+        } catch (\ErrorException $e) {
+	        $trace = ($e->getTrace());
+
+            echo PHP_EOL.'Timezone Error: ',  $e->getMessage() ." on ". $trace[0]['file'] ." in line ". $trace[0]['line'].".",  PHP_EOL;
+        }
+
+    }
+
+    public function getTimezone(){
+        return date_default_timezone_get();
+    }
+
+    public function listTimezones() {
+        return DateTimeZone::listIdentifiers(DateTimeZone::ALL);
+    }
 	
 }
 
@@ -132,6 +155,11 @@ if(USE_DB_CONFIG === true) {
 $config->set('config_url', HTTP_URL);
 $config->set('config_ssl', HTTPS_URL);
 
+//timezone
+if($config->get('date_timezone')){
+    $engine->setTimezone($config->get('date_timezone'));
+}
+
 // Site Title
 if($config->get('PatternSiteTitle') == true) {
 	define('PATTERSITETITLE', $config->get('PatternSiteTitle'));