title: Disable the Account Lock-Out option - Bugzilla 4.2.1
body: <p>My current bugzilla 4.2.1 installation blocks any user temporarily for
  multiple login failures. If they try to use incorrect password for,
  say 5 times, they will not be able to login again and a mail is being
  sent to the maintainer of the installation. Is there anyway I can
  disable the Account Lock-Out feature? I don't want any user to be
  blocked due to login failures.</p>
  
  <p>Thank you</p>