Merge branch 'refactor-udgen'

* refactor-udgen: (24 commits)
  Get rid of global variable PasswdAttrs
  GenBSMTP
  GenDNS
  GenPasswd
  GenShadow
  Do not forget that passwords start with {crypt}
  GenShadowSudo
  GenSSHShadow
  fix not-array-value-but-multiple-values check
  GenGroup partially
  GenForward
  GenCDB
  And GenMailList
  whitespace fixes
  And GenMailBool
  Let disable-main-msg generation use Account class
  Let disabled-users generation use Account class
  Let private generation use Account class
  Catch the case where attributes that are not declared as an array value have more than one value.  This indicates a bug in the data, code, or ldap schema
  Some improvement over the last path
  ...