diff --git a/system/libs/pot/OTS_Buffer.php b/system/libs/pot/OTS_Buffer.php
index 72c084e9..69cfea18 100644
--- a/system/libs/pot/OTS_Buffer.php
+++ b/system/libs/pot/OTS_Buffer.php
@@ -15,15 +15,15 @@
 
 /**
  * Binary buffer container.
- * 
+ *
  * <p>
  * This is generic class for classes that uses buffer-baser read-write operations (it can also emulate C-like pointers).
  * <p>
- * 
+ *
  * <p>
  * Note that unlike <var>NetworkMessage</var> class from OTServ C++ source code, in this one reading and writing positions are separated so you can pararelly read and write it's content like for example using object of this class as stack.
  * </p>
- * 
+ *
  * @package POT
  * @version 0.1.3
  * @property string $buffer Properties binary string.
@@ -39,162 +39,162 @@ class OTS_Buffer
 {
 /**
  * Node properties stream.
- * 
+ *
  * @var string
  */
-    protected $buffer;
+	protected $buffer;
 /**
  * Properties stream pointer.
- * 
+ *
  * @var int
  */
-    protected $pos;
+	protected $pos;
 
 /**
  * Initializes new buffered reader.
- * 
+ *
  * @param string $buffer Buffer content.
  */
-    public function __construct($buffer = '')
-    {
-        $this->buffer = $buffer;
-        $this->pos = 0;
-    }
+	public function __construct($buffer = '')
+	{
+		$this->buffer = $buffer;
+		$this->pos = 0;
+	}
 
 /**
  * Magic PHP5 method.
- * 
+ *
  * <p>
  * Allows object importing from {@link http://www.php.net/manual/en/function.var-export.php var_export()}.
  * </p>
- * 
+ *
  * @param array $properties List of object properties.
  */
-    public static function __set_state($properties)
-    {
-        $object = new self();
+	public static function __set_state($properties)
+	{
+		$object = new self();
 
-        // loads properties
-        foreach($properties as $name => $value)
-        {
-            $object->$name = $value;
-        }
+		// loads properties
+		foreach($properties as $name => $value)
+		{
+			$object->$name = $value;
+		}
 
-        return $object;
-    }
+		return $object;
+	}
 
 /**
  * Returs properties stream.
- * 
+ *
  * @return string Properties stream.
  */
-    public function getBuffer()
-    {
-        return $this->buffer;
-    }
+	public function getBuffer()
+	{
+		return $this->buffer;
+	}
 
 /**
  * Sets properties stream.
- * 
+ *
  * @param string Properties stream.
  */
-    public function setBuffer($buffer)
-    {
-        $this->buffer = $buffer;
-        $this->pos = 0;
-    }
+	public function setBuffer($buffer)
+	{
+		$this->buffer = $buffer;
+		$this->pos = 0;
+	}
 
 /**
  * Checks if there is anything left in stream.
- * 
+ *
  * @return bool False if pointer is at the end of stream.
  */
-    public function isValid()
-    {
-        return $this->pos < strlen($this->buffer);
-    }
+	public function isValid()
+	{
+		return $this->pos < strlen($this->buffer);
+	}
 
 /**
  * Checks stream end state.
- * 
+ *
  * @param int $size Amount of bytes that are going to be read.
  * @throws E_OTS_OutOfBuffer When there is read attemp after end of stream.
  */
-    protected function check($size = 1)
-    {
-        if( strlen($this->buffer) < $this->pos + $size)
-        {
-            throw new E_OTS_OutOfBuffer();
-        }
-    }
+	protected function check($size = 1)
+	{
+		if( strlen($this->buffer) < $this->pos + $size)
+		{
+			throw new E_OTS_OutOfBuffer();
+		}
+	}
 
 /**
  * Returns single byte.
- * 
+ *
  * @return int Byte (char) value.
  * @throws E_OTS_OutOfBuffer When there is read attemp after end of stream.
  */
-    public function getChar()
-    {
-        // checks buffer size
-        $this->check();
+	public function getChar()
+	{
+		// checks buffer size
+		$this->check();
 
-        $value = ord($this->buffer[$this->pos]);
-        $this->pos++;
-        return $value;
-    }
+		$value = ord($this->buffer[$this->pos]);
+		$this->pos++;
+		return $value;
+	}
 
 /**
  * Appends single byte to buffer.
- * 
+ *
  * @param int $char Byte (char) value.
  */
-    public function putChar($char)
-    {
-        $this->buffer .= chr($char);
-    }
+	public function putChar($char)
+	{
+		$this->buffer .= chr($char);
+	}
 
 /**
  * Returns double byte.
- * 
+ *
  * @return int Word (short) value.
  * @throws E_OTS_OutOfBuffer When there is read attemp after end of stream.
  */
-    public function getShort()
-    {
-        // checks buffer size
-        $this->check(2);
+	public function getShort()
+	{
+		// checks buffer size
+		$this->check(2);
 
-        $value = unpack('v', substr($this->buffer, $this->pos, 2) );
-        $this->pos += 2;
-        return $value[1];
-    }
+		$value = unpack('v', substr($this->buffer, $this->pos, 2) );
+		$this->pos += 2;
+		return $value[1];
+	}
 
 /**
  * Appends double byte to buffer.
- * 
+ *
  * @param int $short Word (short) value.
  */
-    public function putShort($short)
-    {
-        $this->buffer .= pack('v', $short);
-    }
+	public function putShort($short)
+	{
+		$this->buffer .= pack('v', $short);
+	}
 
 /**
  * Returns quater byte.
- * 
+ *
  * @return int Double word (long) value.
  * @throws E_OTS_OutOfBuffer When there is read attemp after end of stream.
  */
-    public function getLong()
-    {
-        // checks buffer size
-        $this->check(4);
+	public function getLong()
+	{
+		// checks buffer size
+		$this->check(4);
 
-        $value = unpack('V', substr($this->buffer, $this->pos, 4) );
-        $this->pos += 4;
-        return $value[1];
-    }
+		$value = unpack('V', substr($this->buffer, $this->pos, 4) );
+		$this->pos += 4;
+		return $value[1];
+	}
 
 	public function getLongLong()
 	{
@@ -208,222 +208,222 @@ class OTS_Buffer
 
 /**
  * Appends quater byte to buffer.
- * 
+ *
  * @param int $long Double word (long) value.
  */
-    public function putLong($long)
-    {
-        $this->buffer .= pack('V', $long);
-    }
+	public function putLong($long)
+	{
+		$this->buffer .= pack('V', $long);
+	}
 
 /**
  * Returns string from buffer.
- * 
+ *
  * <p>
  * If length is not given then treats first short value from current buffer as string length.
  * </p>
- * 
+ *
  * @param int|bool $length String length.
  * @return string First substring.
  * @throws E_OTS_OutOfBuffer When there is read attemp after end of stream.
  */
-    public function getString($length = false)
-    {
-        // reads string length if not given
-        if($length === false)
-        {
-            $length = $this->getShort();
-        }
+	public function getString($length = false)
+	{
+		// reads string length if not given
+		if($length === false)
+		{
+			$length = $this->getShort();
+		}
 
-        // checks buffer size
-        $this->check($length);
+		// checks buffer size
+		$this->check($length);
 
-        // copies substring
-        $value = substr($this->buffer, $this->pos, $length);
-        $this->pos += $length;
-        return $value;
-    }
+		// copies substring
+		$value = substr($this->buffer, $this->pos, $length);
+		$this->pos += $length;
+		return $value;
+	}
 
 /**
  * Appends string to buffer.
- * 
+ *
  * @param string $string Binary length.
  * @param bool $dynamic Whether if string length is fixed or not (if it is dynamic then length will be inserted as short before string chunk).
  */
-    public function putString($string, $dynamic = true)
-    {
-        // appends string length if requires
-        if($dynamic)
-        {
-            $this->putShort( strlen($string) );
-        }
+	public function putString($string, $dynamic = true)
+	{
+		// appends string length if requires
+		if($dynamic)
+		{
+			$this->putShort( strlen($string) );
+		}
 
-        $this->buffer .= $string;
-    }
+		$this->buffer .= $string;
+	}
 
 /**
  * Empties buffer.
  */
-    public function reset()
-    {
-        $this->__construct();
-    }
+	public function reset()
+	{
+		$this->__construct();
+	}
 
 /**
  * Returns current read position.
- * 
+ *
  * @return int Read position.
  */
-    public function getPos()
-    {
-        return $this->pos;
-    }
+	public function getPos()
+	{
+		return $this->pos;
+	}
 
 /**
  * Seeks current reading position.
- * 
+ *
  * @param int $pos Read position.
  */
-    public function setPos($pos)
-    {
-        $this->pos = $pos;
-    }
+	public function setPos($pos)
+	{
+		$this->pos = $pos;
+	}
 
 /**
  * Returns buffer size.
- * 
+ *
  * @return int Buffer length.
  */
-    public function getSize()
-    {
-        return strlen($this->buffer);
-    }
+	public function getSize()
+	{
+		return strlen($this->buffer);
+	}
 
 /**
  * Skips given amount of bytes.
- * 
+ *
  * @param int $n Bytes to skip.
  * @throws E_OTS_OutOfBuffer When there is read attemp after end of stream.
  */
-    public function skip($n)
-    {
-        $this->check($n);
-        $this->pos += $n;
-    }
+	public function skip($n)
+	{
+		$this->check($n);
+		$this->pos += $n;
+	}
 
 /**
  * Magic PHP5 method.
- * 
+ *
  * @param string $name Property name.
  * @return mixed Property value.
  * @throws OutOfBoundsException For non-supported properties.
  * @throws E_OTS_OutOfBuffer When there is read attemp after end of stream.
  */
-    public function __get($name)
-    {
-        switch($name)
-        {
-            // simple properties
-            case 'buffer':
-                return $this->buffer;
+	public function __get($name)
+	{
+		switch($name)
+		{
+			// simple properties
+			case 'buffer':
+				return $this->buffer;
 
-            // isValid() wrapper
-            case 'valid':
-                return $this->isValid();
+			// isValid() wrapper
+			case 'valid':
+				return $this->isValid();
 
-            // getChar() wrapper
-            case 'char':
-                return $this->getChar();
+			// getChar() wrapper
+			case 'char':
+				return $this->getChar();
 
-            // getShort() wrapper
-            case 'short':
-                return $this->getShort();
+			// getShort() wrapper
+			case 'short':
+				return $this->getShort();
 
-            // getLong() wrapper
-            case 'long':
-                return $this->getLong();
+			// getLong() wrapper
+			case 'long':
+				return $this->getLong();
 
-            // getString() wrapper
-            case 'string':
-                return $this->getString();
+			// getString() wrapper
+			case 'string':
+				return $this->getString();
 
-            // getPos() wrapper
-            case 'pos':
-                return $this->getPos();
+			// getPos() wrapper
+			case 'pos':
+				return $this->getPos();
 
-            // getSize() wrapper
-            case 'size':
-                return $this->getSize();
+			// getSize() wrapper
+			case 'size':
+				return $this->getSize();
 
-            default:
-                throw new OutOfBoundsException();
-        }
-    }
+			default:
+				throw new OutOfBoundsException();
+		}
+	}
 
 /**
  * Magic PHP5 method.
- * 
+ *
  * @version 0.1.3
  * @param string $name Property name.
  * @param mixed $value Property value.
  * @throws OutOfBoundsException For non-supported properties.
  */
-    public function __set($name, $value)
-    {
-        switch($name)
-        {
-            // buffer needs to be reset
-            case 'buffer':
-                $this->setBuffer($value);
-                break;
+	public function __set($name, $value)
+	{
+		switch($name)
+		{
+			// buffer needs to be reset
+			case 'buffer':
+				$this->setBuffer($value);
+				break;
 
-            // putChar() wrapper
-            case 'char':
-                $this->putChar($value);
-                break;
+			// putChar() wrapper
+			case 'char':
+				$this->putChar($value);
+				break;
 
-            // putShort() wrapper
-            case 'short':
-                $this->putShort($value);
-                break;
+			// putShort() wrapper
+			case 'short':
+				$this->putShort($value);
+				break;
 
-            // putLong() wrapper
-            case 'long':
-                $this->putLong($value);
-                break;
+			// putLong() wrapper
+			case 'long':
+				$this->putLong($value);
+				break;
 
-            // putString() wrapper
-            case 'string':
-                $this->putString($value);
-                break;
+			// putString() wrapper
+			case 'string':
+				$this->putString($value);
+				break;
 
-            // setPos() wrapper
-            case 'pos':
-                $this->setPos($value);
-                break;
+			// setPos() wrapper
+			case 'pos':
+				$this->setPos($value);
+				break;
 
-            default:
-                throw new OutOfBoundsException();
-        }
-    }
+			default:
+				throw new OutOfBoundsException();
+		}
+	}
 
 /**
  * Returns string representation of buffer object.
- * 
+ *
  * @return string Object's buffer.
  */
-    public function __toString()
-    {
-        return $this->buffer;
-    }
+	public function __toString()
+	{
+		return $this->buffer;
+	}
 
 /**
  * Resets pointer of cloned object.
  */
-    public function __clone()
-    {
-        $this->pos = 0;
-    }
+	public function __clone()
+	{
+		$this->pos = 0;
+	}
 }
 
 /**#@-*/