Log the actual promise object instead of a useless name

console.log has support for objects including introspection, use this instead of logging useless names.

Makes
![screen shot 2014-05-09 at 11 19 45](https://cloud.githubusercontent.com/assets/40496/2926342/1b596176-d75b-11e3-9ff9-3ca7812ca513.png)

to

![screen shot 2014-05-09 at 11 18 28](https://cloud.githubusercontent.com/assets/40496/2926346/21df541a-d75b-11e3-852a-ada31b7342c2.png)

In development.