Add list_bugs script to list all bugs in the database

```bash
php list_bugs.php
```

Terminal Result:
> Something does not work! - 27.11.2013
>     Reported by: beberlei
>     Assigned to: beberlei
>     Platform: This is a new name
Switch to array hydration in list_bugs

Previously, results were pulled as object instances. Doctrine allows us results to be pulled as simple PHP arrays instead of objects. In our case (a read-only request), doing so will yield considerable performance benefits (more efficient to hydrate arrays than objects).

Note: In order to include products in the hydration of our arrays, an additional fetch-join needed to be added.
Add show_bug script to show bug based on id

```bash
php show_bug.php 1
```

Terminal Result:
> Bug: Something does not work!
> Engineer: beberlei
Add LazyLoading proxy note to show_bug
Add dashboard script to show user dashboard based on id

```bash
php dashboard.php 1
```

Terminal Result:
> You have created or assigned to 1 open bugs:
>
> 1 - Something does not work!
Add products script to show # of open bugs grouped by product

Use Doctrine's hydration mode for scalar result values.

```bash
php products.php
```

Terminal Result:
> This is a new name has 1 open bugs!
Add local DQL readings to Additional Readings in README