Auto complete

[panpasy]

Hi, I create the auto-complete component to the google map and I add some demo code.

But it is not perfect. I am wondering we can create a new branch for this feature.
The main problems are:

1. Cannot get the initial bounds from the google map.
2. Need to load google map api multiple times. I am wondering is there any way we can load the api once before we use google map and auto-complete component.