GoogleCharts example code

I released my example GoogleCharts updated to my version 0.3, This code seems to work relative to the amber/master branch. 

This is a git submodule. After a git clone you need to issue the commands below to pull the changes in to the cloned repository, If you change amber branches git may get confused and notice the files and directories created by the git submodule update, this may cause problems when these items show up at commit time.

        git submodule init
        git submodule update