Rename windwaker/skyshaker modules.  Fixes #42.

Improves the development experience by changing the project's directory structure from
```
.
└── windwaker
    ├── media
    │   └── images
    ├── skyshaker
    │   ├── migrations
    │   └── templates
    │       └── skyshaker
    ├── static
    │   └── skyshaker
    │       ├── Bootstrap
    │       │   ├── Bootstrap
    │       │   ├── css
    │       │   │   └── mockups
    │       │   ├── fonts
    │       │   ├── img
    │       │   └── js
    │       ├── css
    │       ├── img
    │       │   ├── main
    │       │   ├── project
    │       │   ├── social
    │       │   └── user
    │       └── js
    └── windwaker
```

to

```
.
└── geomakers
    ├── core
    │   ├── migrations
    │   └── templates
    │       └── core
    ├── media
    │   └── images
    └── static
        └── geomakers
            ├── Bootstrap
            │   ├── Bootstrap
            │   ├── css
            │   │   └── mockups
            │   ├── fonts
            │   ├── img
            │   └── js
            ├── css
            ├── img
            │   ├── main
            │   ├── project
            │   ├── social
            │   └── user
            └── js
```

*Note*: This change includes modifications to the migrations (which will surely break migrations when run against the deployed application).  The easiest path is solution is probably to drop all the database tables and just re-run all of the migrations.