Make doccheck a bit pickier about what it considers a symbol.
Define the Activity class.
Implement Interactive system and wchar_t interactive reader.
Improve object construction.
[qw]strlcat now work correctly.
Correct documentation in echo_area.
Activity now updates the echo area when destroyed.
Interactive system now works.
Document $f_IActive_Activity_get_echo_area_meta.
Add target-based character movement commands to Line_Editor.