Major rearrangement, moved all gameplay data to `data.lisp'

Nouns with leading vowels now get the correct article.

Patch description now shown in place panel.

Fixed feature display bug.

Changed project name to Naledi ya Africa

Implemented feature creation and drawing (still buggy).

Added messages window

Added other panels to UI.

Fixed scoping issue with *world*

Implemented a rudimentary ncurses map interface.

Some file rearrangements