Table of Contents
	        Zend_Mime is a support class for handling multipart MIME messages. It is used by Zend_Mail and Zend_Mime_Message and may be used by applications requiring
	        MIME support.
	    
	    Zend_Mime provides a simple set of static helper methods to work with MIME:
	    
	                Zend_Mime::isPrintable(): Returns TRUE if the given string contains no unprintable characters,
	            FALSE otherwise.
	            
	                Zend_Mime::encodeBase64(): Encodes a string into base64 encoding.
	            
    	            Zend_Mime::encodeQuotedPrintable(): Encodes a string with the quoted-printable mechanism.
	            
	    Zend_Mime defines a set of constants commonly used with MIME Messages:
	    
    	            Zend_Mime::TYPE_OCTETSTREAM: 'application/octet-stream'
	            
	                Zend_Mime::TYPE_TEXT: 'text/plain'
	            
	                Zend_Mime::TYPE_HTML: 'text/html'
	            
	                Zend_Mime::ENCODING_7BIT: '7bit'
	            
	                Zend_Mime::ENCODING_8BIT: '8bit'
	            
    	            Zend_Mime::ENCODING_QUOTEDPRINTABLE: 'quoted-printable'
	            
	                Zend_Mime::ENCODING_BASE64: 'base64'
	            
	                Zend_Mime::DISPOSITION_ATTACHMENT: 'attachment'
	            
	                Zend_Mime::DISPOSITION_INLINE: 'inline'
	            
	    When Instantiating a Zend_Mime Object, a MIME boundary is stored that
	    is used for all subsequent non-static method calls on that object.
	    If the constructor is called with a string parameter, this value
	    is used as a MIME boundary. If not, a random MIME boundary is generated
	    during construction time.
	
	    A Zend_Mime object has the following Methods:
	    
	                boundary(): Returns the MIME boundary string.
	            
	                boundaryLine(): Returns the complete MIME boundary line.
	            
    	            mimeEnd(): Returns the complete MIME end boundary line.