Rework directory structure.

README

@@ -1,29 +1,2 @@
-Dotfiles for a variety of programs:
-
-Terminal utilities
-   -POSIX shell rc
-   -Yet Another Shell rc
-   -Extensible Shell rc
-
-Xresources
-   -shod
-   -xterm
-   -xman
-   -xless
-   -xcalc
-   -xcalendar
-   -xmh
-   -xrn
-   -xmessage
-
-GTK stuff
-   -gtkrc
-
-GNU EMACS
-   -init.el
-
-Miscellaneous stuff
-   -lemonbar script
-   -xshkd bindings
-   -menu script
-   -xsession
+System-level configurations are grouped by absolute path under system. User-level configurations
+are grouped by their relative locations under user.