Improve instructions
Change titlize titleize
Create jsbin environment for Assignment 2
Update exercise and assignment jsbins

Create missing jsbins
Use qunit 1.12.0 instead of git
Use 2 spaces instead of 4 for Exercise 1 and Assignment 1
Add environment instructions link
Add environment instructions link; fix jsbin link
Expand and fill in first 3 sections
Clarify anonymous functions
Complete Lower-case section
Complete Refacotr Code section
Complete Example 1
Label 'Submission Instructions' and add TDD cycle
Clarify the Upper-case section
WIP: Work in intro
Update