new file:   MFWdb.py
        MFWdb.py is to connect database mafengwo
	new file:   MFWurl.py
        MFWurl is to resolve relative urls fetched form personal home page
	modified:   mafengwo.py
        Modifing mafengwo.py to put urls into correct tables and connect
    database through MFWdb
	modified:   travelnote.py
        new version of travelnote connect database through MFWdb