support 6.x-1.4-rc1

The first step toward branching for a 7.x release is a new stable 6.x release to branch from. Huge changes since the last release. Heavily tested in production, but I'm still going to start with a Release Candidate to encourage testing before we officially roll 1.4 and branch for 7.x development.

New features:

• Provide ability to edit multiple tickets at one time, adds new "edit multiple tickets" permission.
  #508170: Allow multi-editing of tickets
• New module: support_mailcmd. Allows setting of support ticket properties via email. See MAIL.txt for details.
  #747328: Changing Ticket Status Via Email
• New ticket overview pages. Provides per-user and per-client overviews.
• Provide admin interface for modifying notification emails.
  #694264: Custom e-mail text
• Multilingual support for notification emails, respect user's preferred language.
  #981060: Introduce multilingual variables for mail texts
• Nested clients, allow one level of sub-clients in client listings
  #1066858: Nested clients
• Allow per-client configuration of automatic user creation.
  #544268: Make auto-account creation optional
• Provide option to globally disable notifications.
  #654582: Disable notifications
• Optionally force non-aliased URLs in notification emails.
  #982712: Create option to make the system use unaliased URLs in the tickets notifications
• Add "move ticket" permission.
  #819484: Permission entry for the 'Can Move Ticket'
• Provide visual feedback when sending notifications.
  #713288: Visual feedback about notifications
• Improve mail checking error messages.
  #974496: Mailbox login error messages should always include at least the username of the mailbox

Bug fixes:

• Fix autocomplete to work for subscribed user list.
  #1016190: Permission 'can subscribe other users to notifications' doesn't turn on autocomplete for "Subscribed" user list field.
• Improved inline documentation about how email notification supression works.
  #981268: The 'suppress notification' checkbox lies to me
• Give ticket properties fieldset a title.
  #731766: "Null" shows in Vertical Tabs
• Fix IMAP port documentation.
  #1023676: Incorrect description on client page
• Fix duplicate entry errors.
  #677504: duplicate entry error inserting into support_assigned
• Set proper mail headers in notification emails.
  #862150: Fix reply detection to handle replies to outgoing mail / cleanup, refactor, and document detection code.
• Only set up states array once when building menu.
  #766010: [patch] Small performance optimization, don't assign values to $states array in a loop
• Add missing calls to t() function.
  #761310: Enclose two drupal_set_message() strings in the t() function
• Add missing calls to t() function.
  #764500: 3 form element titles in support.admin.inc not translatable
• Make all email text translatable.
  #761062: E-mail text in t() function is not in the support.pot file because not extracted by xgettext
• Don't try sending email to users with no email address.
  #731248: Invalid address: You must provide at least one recipient email address. SMTP -> get_lines(): $data was ""
• Only try autosubscribing users when users are defined.
  #721368: Auto-subscribe bug
• Display last updated timestamp when listing a user's tickets.
  #752188: Wrong Date Used For Last Updated Column
• Fix typos that break XHTML validity.
  #763838: Incorrect HTML values break validity
• Improve domain matching.
  #717618: Improve domain matching
• Properly truncate utf8 text.
  #696806: Title with accented character not visible on the ticket lists
• Only use checkdnsrr for domain validation if it exists.
  #669756: make dns validation optional
• Fix inline documentation typo.
  #662776: Mis-spelling in UI