First draft of Chapter 6

Deals with the founding of Habari and the reasons for Habari being set
up.

Requires editing by Krista.
Add resources

Adding resources for subsequent chapters. Includes:
- early logo designs
- newspaper articles
- shuttle spec
- WP usability review
.DS_store deletion
Merge pull request #24 from smckeown/master

First Draft of Chapter 6 and inclusion of new resources