wording fix on Chap 9
Merge pull request #96 from mgreau/master

wording fix on Chap 9
added Yeoman section and chapter summary
Merge pull request #99 from gAmUssA/master

added Yeoman section and chapter summary
addressed comments to jQuery, TDD, ch on Productivity is done
added description of the Part 1- 4
small typo correction
moved ch1 and ch2 to appendixes