add 'required' to password confirmation input on ucp.php
add timestamp config for teams end option to enable general credentials

If teams are allowed to do so, they can use the timestamping credentials set by the sysadmin, or if they set their
own on the admin page, they will use this one.
Merge branch 'next'

* next:
  add timestamp config for teams end option to enable general credentials
  add 'required' to password confirmation input on ucp.php