Refactored node_tdd.js replacing while and for loops with Array's forEach method and callbacks.
Moved declaration and assignment of lisp_interpreter in node_tdd.js to within each test unit's process, so as to clear any residual variables.
Corrected failure stack reporting in node_tdd.js.
Added test unit that mostly fails to TDD list.
Hid horizontal scrollbar in stylesheet.
Bumped to version 0.0.3 and updated documentation.