Description: ./files directory cannot be up 32000 directories max at ext3 configuration.
Solution : split the uid case directory at 3 level to create a tree structure. Apply this new structure to all PM. Set a upgrade procedure at time to use processmaker upgrade <workspace> commnand as su.
I add a valiadation to show a new error message when you are ussing a pluggin to generate the documents and when you are not using pluggins and only the documents weren't genereted or were moved.
