Include default template

...this will be modified to suit d3.chart's needs.
Remove trailing spaces
Implement support for external examples
Implement links to externally-hosted source code
Make top-level layout template configurable
Improve presentation for method names
Fix whitespace
Move external examples
Read source file/line URLs from query string
Increase parity with current site design
Include links to instance methods in navigation
Use fully-qualified class names in navigations
Hard-code "main page" content