Alot

* signal: refresh current buffer on SIGUSR1
* signal: exit interface on SIGINT
* interpret C-g keybinding in prompts
* new config option:encrypt_by_default
* new config option: thread_authors_order_by
* indicate untrusted PGP signatures in thread view
* more flexible account selection for replies

* new config option: msg_summary_hides_threadwide_tags
* new config setting: thread_subject
* new hook: sanitize_attachment_filename
* new hook: exit()
* list replies (new command parameter and config setting: auto_replyto_mailinglist)
* new config setting for accounts: encrypt_by_default
* new config setting for accounts: alias_regexp
* new config setting for abooks: shellcommand_external_filtering
* switched to setuptools
* detached urwidtrees library into separate project (and new dependency)

* implement vim-style "move last" command (bound to G)
* fixes in reply/forwarding
* add option "--tags" to taglist command to display only a subset of the tags
* fix: safely interrumpt a command sequence
* use suffix ".eml" for temporary email files when editing
* interpret "compose mailto:foobar" commands
* new "tomorrow" colour theme
* Add some Emacs keybindings for prompts

* full support for PGP/MIME [de|en]cryption and signatures
* add missing "unattach" command in envelope buffer
* honor 'Mail-Followup-To' header and set if for selected mailinglists
* better handling of replies to self-sent messages
* make auto_remove_unread configurable
* rewrite thread buffer
* improved global move commands: first/last line, half-page up/down
* tree-based movement in threads (first/last reply, next/previous unfolded/sibling, parent)
* fold/unfold messages based on query string in thread mode
* respect mailcap commands that expect stdin
* Support different libmagic APIs
* new hooks called before/aftr buffer open/close/focus
* new global repeat command

* extra: zsh completion file
* thread mode: add "tags" pseudo header to message display
* case insensitive matching in Addressbook completion
* compose: interpret "attach" pseudo header
* compose: set initial message tags
* envelope: completion for 'From'
* reply/forward: more flexible construction of "From" headers (hello plussing!)
* thread mode: added bounce command for direct redirection w/o an envelope buffer
* thread mode: more robust "pipeto" command
* add config option "prefer_plaintext"
* prevent multiple 'index locked' notifications
* kill some zombies! (325)
* search mode: bulk tagging
* less annoying multi-key bindings
* add global "move" command for scriptable cursor movement
* support for encrypted outgoing mails using PGP/MIME

* interpret (semicolon separated) sequences of commands
* new input handling: allow for binding sequences of keypresses
* add ability to overwrite default bindings
* remove tempfiles (email drafts) as late as possible for better error recovery
* confirmation prompt when closing unsent envelopes
* prevent accidental double sendout of envelopes
* fix focus placement after tagcommand on last entry in search buffer
* new command 'buffer' that can directly jump to buffer with given number
* extra: sup theme
* fix tagstring sorting in taglist buffer
* update docs
* lots of internal cleanups
* search buffer theming fixes (alignment of threadline parts)
* fix help box theming
* comma-separate virtual "Tags" header added before printing mails
* fix pipeto command for interactive (foreground) shell commands
* handle possible errors occurring while saving mails
* indicate (yet uninterpreted) input queue in the status bar
* handle python exceptions that occur during 'call' command