GENERAL:
    - Complete the get_meta method:
	the ultimate goal is to remove
	all "harmful meta" stuff
    - Fix the ugly function get_sharedir
    - What is wrong with the testsuite ?
    - Handle exotic characters in filenames
    - use the return code of external apps used by mat
	to check that everything went right

GUI:
    - Drag and Drop
    - Fix the statusbar