GENERAL:
    - Complete the get_meta method:
	the ultimate goal is to remove
	all "harmful meta" stuff
    - Fix the ugly function get_sharedir
    - Modify creation/modification date
    (except for stupid formats like zip)

GUI:
    - display harmrful meta per file

FORMATS
    - microsoft office < 2007 (ugly and insane)
    - fix zip (fix python's ziplib)
    - videos format ?