Make new additions appear in their own lines;--

Fix a case where last character may be eaten. New version will chomp whitespace
off, but naturally files with WS in their names are in jeopardy now.
Fix submaps to accommodate Emacs' submap handling.

Either write more clever selection algorithm or prepend every resulting keybind
with a unique key so that Emacs knows to finish completing a submap.
Add one more key to the list.

Forgot that I wrote the functionality to count from 0.
Prettify the listing.

Next stop, giving some font face lift to the filenames.