Update Google Image Charts API to javascript

[hcarter333]

The Google Images Charts API is deprectated

Update to the Javascript API.

[hcarter333]

Change this line first (the pie charts)

[hcarter333]

Started a preliminary version of charting that builds the html statically, and then adds the charts. It works ok:

The only downside is that the original code did not have separate cells for the charts.
That's ok though. Just add another row for the charts and another row for the buttons. Then , the method that does the charting at the moment, will just call the charting API.

[hcarter333]

I did a test deploy and I did not break the charting:

[hcarter333]

Also, we're about to have a Python upgrade issue:

[hcarter333]

I did the professor portion of the exercise:

Move the charting routines to a .js file independent of the rest of the ham_example.js semi-train-wreck.

You can find the differences in the most recent commit.