* Fix status bar flicker by double-buffering the output.
* Add horizontal_flip and vertical_flip layout options.
* Kill references before focusing on a new window.
* Add new options to change focus behavior on window open and close.
* Increase workspace hard limit to 22.
* Tons of wart removals
* Add backwards compatibility for the spawn_term binding
* Add clarification to man page that default workspace_limit is 10.
Tested on amd64.
"no objection.." sthen@
