Modified library to work with GoogleAppEngine

This will allow for the current android library to work on GoogleAppEngine - I have made two major change:
1. I have replaced the HTTPClient methods from org.apache with the java.net HTTPUrlConnection methods. 
2. Any java.awt images methods were replaced by the Images API methods of GoogleAppEngine.
Hmmm herein lies the problem with this pull request. This library was not built for Google App Engine. Developers should pass a GAERequestHandler to the GooglePlaces constructor if they are using GAE otherwise the default should still be used.