- Add Cancel button to addressbook (#1180565).
- RFC 2046: Send mixed messages with multipart/alternative nested boundaries
with correct boundary strings.
+ - EXPERIMENTAL: Mailbox listing converted to templated layout. Added
+ template support functions and classes. Rewrote some page header and
+ mailbox listing functions. Disabled 'show_recipient_instead' option.
+ Added more columns to mailbox listing and index order options.
- WARNING: if same user data storage location is used to store SquirrelMail
1.4.x and 1.5.1+ user settings, SquirrelMail 1.5.1+ will reset mailbox
display order (Options->Index Options) in stable. Backup your data before