Review Request: 8002026: build-infra: deploy repository building

[Erik Joelsson]

This is the open part of this change. It only changes the compare script 
to handle the deploy build artifacts.

http://cr.openjdk.java.net/~erikj/8002026/webrev.root.01/ 
<http://cr.openjdk.java.net/%7Eerikj/8002026/webrev.root.01/>

/Erik