Replace placerholder icons with real google icons

[GoogleCodeExporter]

What steps will reproduce the problem?
1. open the google apis explorer

What is the expected output? What do you see instead?
up to date icons is the expected output, but I see a lot of placeholder icons. 

What version of the product are you using? On what operating system?
any OS, latest verion of the product as of 2/26/2013

Please provide any additional information below.
Here, I list the icons that should be used with some of the apis:
CustomSearch API - 
http://www.google.com/images/icons/product/customsearch-16.png
Enterprise Apps Reseller API - 
http://www.google.com/images/icons/product/apps-16.png
Fusion Tables API - 
http://www.google.com/images/icons/product/fusion_tables-16.png
Google Latitude API - http://www.google.com/images/icons/product/latitude-16.png
Google Maps Coordinate API - 
http://www.google.com/images/icons/product/coordinate-16.png
Google Web Fonts Developer API - 
http://www.google.com/images/icons/product/fonts-16.png
Groups Settings API - http://www.google.com/images/icons/product/groups-16.png
Search API for Shopping - 
http://www.google.com/images/icons/feature/search_shopping_api-16.png
URL Shortener API - http://www.google.com/images/icons/product/goo_gl-32.png

Original issue reported on code.google.com by ccbjeurissen@gmail.com on 25 Feb 2013 at 11:53

[GoogleCodeExporter]

Oh, and replace all the other ones that do not have an icon with this one:
http://www.google.com/images/icons/product/google_generic-16.png

oh, and of course the size of the URL Shortener API icon I mentioned above 
should be 16px:
http://www.google.com/images/icons/product/goo_gl-16.png

Original comment by ccbjeurissen@gmail.com on 25 Feb 2013 at 11:56