Add control to the files that are copied into the Ruby project public folder

Added two configuration items to lineman.json

```
{"linemanApps":
[
    {
        "location": "front_end",
        "installToPath": "public",
        "filesToMove": ["js/*.js", "css/*.css", "img/*.*", "*.html"],
        "createDirectories": true
    }
]}
```

`filesToMove` contains a list of paths for files that need to be moved into the target folder.
`createDirectories` tells the compiler to create the target directories if they don't exist.

This allows to manage images and html assets in lineman as well.

Thanks,
Ariel Sakin