Chapter 8: Modular Development - minor rewording/changes
Chapter 8: Modular Development - minor changes

Merged my corrections and rewording with latest.
Unit testing chapters (jasmine, qunit, sinonjs) - minor changes
Unit testing chapters (11-13)  - additional minor edits/corrections.
Merge pull request #353 from dcmaf/gh-pages

Chapter 8: Modular Development - Minor corrections / rewording