Added several functions.
Changed several commands to use updated elxiki-line-add-children.
Only open directories that exist.
Blank lines no longer interrupt menus and such.
Fixed bug for expanding directories.
Fixed another bug for expanding directories.
Added a heading line (>) and made faces work a bit better.
No, I really think I fixed expansion this time. Really.
Minor change.
Refactor context format to prepare for menus.