made 2.2.9 release.
also update sort indicator at empty folder. Updated NEWS.
updated po files.
unified menu strings.
added 'Set as (not) junk mail' to the summary context menu.
po/tr.po: fixed a typo which caused crash.
added 'Mark all read' to the folder context menu.
made 2.2.6 release.
added the option for MIME filename encoding method.
made 2.2.2 release.
made 2.2.1 release.
updated makewin32.sh, and hu.po. Made 2.2.0beta8 release.
added the help of command line options.
added Arabic encoding, and 2.2.0beta7 release.
made 2.2.0beta6 release.
'File/Insert signature' now inserts signature into current cursor position.
implemented clearing of IMAP4 message caches on exit.
added tooltip for search entry.
a bit of optimization for toggling threads.
added filter conditions of status such as 'unread', 'mark', 'color-label', and 'mime'.
perform show/hide on trayicon click. Implemented popup menu on trayicon.
replaced 'Search messages...' with 'Edit search condition...' on virtual folder.
modified the message of deleting search folder.
made 2.2.0beta2 release.
made 2.2.0beta1 release.
made 2.1.9 release.
added an option to update only INBOX on checking new messages of IMAP4 accounts.
enabled custom queue folder.
added 'Update summary' to the context menu of folder view.
made 2.1.8 release.
moved outgoing encoding option into Display - Encoding tab.
reorganized the common prefs.
made 2.1.7 release.
implemented spell checking.
updated de.po and pt_BR.po.
added '--exit' command line option.
moved the location of fallback_encoding.
added an option to mark filtered junk mails as read.
added fallback encoding setting.
made 2.1.5 release.
added a setting to delete filtered junk mails from server.
added '--configdir' option which specifies config directory.
win32: modified the default commands.
made 2.1.4 release.
added the default browser to the option of URI command.
modified the text of mailbox setup dialog.
enabled the property of the top folder.
brought back 'Crate filter rule' in the context menu.
added file system path info to folder prefs.
made 2.1.3 release.
only show subject on the compose titlebar.
display the subject line in the window title bar.
modified the display of folder view.
use $DATADIRNAME for $localedir if it is defined.
added 'View/Sort/by thread date'.
added missing translation string.
added missing files in POTFILES.in.
updated po directory.
modified the 'Empty trash' messages.
made 2.1.1 release.
moved NEWS to NEWS-2.0.
modified directories for Windows convention.
made 2.0.0rc release.
made 2.0.0beta6 release.