modified:   src/lisp/io/LispReader.java
	deleted:    src/lisp/lang/Cons.java
	modified:   src/lisp/lang/Context.java
	deleted:    src/lisp/lang/Discardable.java
	modified:   src/lisp/lang/Lisp.java
	new file:   src/lisp/lang/List.java
	modified:   src/lisp/lang/Symbol.java