Remove auto-generated app layout
3.18 Test /static_pages/home has the right title
3.19 Test /static_pages/help has the right title
3.19 Test /static_pages/about has the right title
3.20 Fix titles to pass tests
### 3.3.3 Embedded Ruby
3.23 View static_pages/home: Embedded ruby title
### 3.3.4 Eliminating duplication with layouts