rewrite the INSTALL doc
the install doc is wrong and obsolete on several issues eg : /usr/shar/xx by default etc...
the INSTALL must base itself on a classical /var/www/ install and explain how to create correctly all the directories needed
/var/spool/fusiondirectory /var/cache/fusiondirectory /etc/fusiondirectory
(from redmine: issue id 404, created on 2011-08-12, closed on 2011-10-01)