Esri/pushlet — pull request #12 by davy (2013-10-18 17:55:02+00:00)
Title: More removing of doubling up of notifications for apn

There was still some issues with the payload for apple notifications:

```
{
alert: null,
aps: {
alert: "Buckingham Palace",
sound: "default"
},
data: {
content_id: some_id
},
payload: {},
sound: null
}
```

When it should just be:

```
{
aps: {
alert: "Buckingham Palace",
sound: "default"
},
data: {
content_id: some_id
}
}
```