Description:
------------
These functions do not work:

	/**
		* Replacement for $this->utf7_encode because it expects the text to be in
		* ISO-8859-1 format while GO uses UTF-8.
		*
		* @access public
		* @param $text The UTF-8 encoded text to encode in UTF-7
		* @return string UTF-7 encoded text
		*/	
	function utf7_encode($text)
	{
		return imap_utf7_encode(utf8_decode($text));
	}
	
	/**
	* Replacement for $this->utf7_decode becuase it returns the text in
	* ISO-8859-1 format while GO uses UTF-8.
	*
	* @access public
	* @param $text The UTF-7 text to encode to UTF-8
	* @return string UTF-8 encoded text
	*/	
	function utf7_decode($text)
	{
		return utf8_encode(imap_utf7_decode($text));
	}
}

Reproduce code:
---------------
Use these functions and encode UTF-8 strings with characters like ??? etc in it and it will produce garbage.
I use these in my mail client and it works but other mail clients do not see the folders correctly.


Expected result:
----------------
Other mail clients should see the folder names correctly

Actual result:
--------------
The folder names have strange characters in other mail clients