* 'vmm'
    - _getOrder() Respects now vmm.cfg/maildir/diskusage settings
* 'VirtualMailManager/VirtualMailManager.py'
    - Adds a warning if a directory not exists
        + VirtualMailManager.__getDiskUsage()
        + VirtualMailManager.__maildirdelete()
        + VirtualMailManager.__domdirdelete()
    - Implemented
        + VirtualMailManager.__isdir()
        + VirtualMailManager.cfgGetBoolean()
        + VirtualMailManager.cfgGetInt()
        + VirtualMailManager.cfgGetString()
* 'po/de.po'
* 'po/vmm.pot'
    - updated
If you still have installed vmm 0.3.x you have to proceed this step first:
    * upgrade your vmm installation to version 0.4
If you have installed vmm 0.4 you have to proceed this step:
   * execute upgrade.sh
else
     * read INSTALL