that need other security and inheritate from this mixin.
- change __setPasswordByForce to _forceSetPassword. In this way, it's still not
  possible to call it nor from url nor throught edit method (as it don't begins
  with _set*) and make possible to call it from class that inheritate from
  the mixin


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@35706 20353a03-c40f-0410-a6d1-a30d3c3de9de