Use standard alchemy escaping and export the whole history
Update url
Remove remnants of old poll based clipboard tracking
Move klemmbrett.Klemmbrett.load_dotted() to klemmbrett.util.load_dotted
Make display of current clipboard selection markupsafe
Use _util.humanbool for show-current-selection setting, also, default to yes
Nicer interface for pushing a persisted history, also; use the tail of the history file to populate the picker
Use emit-switch in following code
Make interface attributes public
Add some todos
Improve extend-detection
Make extend-detection use startswith _and_ endswith
Add some todos
Do no boilerplate partialing of callbacks
Add lazy submenus for popups