Log Message:
Update to version 2.6. This makes our local patches no longer relevant/required.
Enchant and GTK 2.14 are now officially supported.

Changes from 2.5.0
------------------
New features
The POP3 remote mailbox feature, which enables the direct view/download/deletion \ 
of messages on POP3 server, was added.
The backups of configuration files are kept for four generations now.
Feature improvements
Enchant (with GtkSpell 2.0.13) has been supported.
When creating filter rule automatically, the target header field is used as a \ 
default filter name.
The Japanese manual was updated.
In the folder selection dialog, only folders which are expanded in the folder \ 
view are expanded.
The folders which should not be selected in the folder selection dialog became \ 
unselectable.
Unix: Only new messages are counted when incorporating from local mbox.
Unix: SIGHUP/SIGINT/SIGTERM/SIGQUIT signals are handled now.
Win32: System shutdown event is also handled on debug mode.
Bugfixes
The parser of IMAP4 was fixed.
Warnings about --datarootdir on running the configure script was removed.
The bug that the addressbook window was not refreshed when sender of message was \ 
added to the addressbook was fixed.
A workaround for raw-JIS filename used for attachments (specifically Eudora) was \ 
made.
The compilation error when using GTK+ 2.14.x was fixed.
Some build fixes were made.
Several bugfixes were made.