Wires up a base view.

Our non-app-specific pages should live in the `main` app.

This creates an index view that renders a blank page with our favorite starship troopers quote on it.

On lines 1-6 of `settings.py`, I made a shortcut function for getting an absolute path from a single path name, that works like so:

```python
print _("templates") # should output something like '/Users/chris/projects/shatterdome/templates'
```