Release 1.13.0 "Externality"

Changes:

- A system for latching and locking views
- Some crash fixes
- Locale-flavored terminals
- A way to add locale-flavored emoji and numbers layouts
- Making the code less annoying to work with in some places
- Fixed layout changes on newer GSettings
- Mod4 modifier
- Better session registration
- New layouts: Dvorak, Colemak wide, hebrew, wide Thai