Merge pull request #10 from weaverba137/master

Chapter 5 Presentation
dding summary of section 5.1 presentation by hogg
Merge pull request #11 from weaverba137/master

Adding some notes to the Chapter 5 presentation
modified fed's hack to wise colors
adding Section 5.8 and demos
Merge pull request #12 from dfm/master

Adding Section 5.8 and demos
added another example