Better Rendering Tests

Need better rendering tests for each of the chart types. Specifically I'd like to do the following:

- [x] Break `test/static.html` out into a single html page for each type of chart under the directory `test/basic/*.html`
- [x] Break `test/time.html` out into a single html page for each type of chart under the directory `test/realtime/*.html`
- [x] Provide a test landing page at `test/index.html` where you can move back and forth between tests

To test these changes checkout the `rsandor/better-tests` branch, run `cake build`, and open `test/index.html` in a browser.