Update notes on releasing based on 2.7.2b1 (#6)
Update notes on releasing based on 2.7.2b1 (#6)

Based on Frank's notes, but expanded considerably to include the Gradle
build and recent changes to the Ant build. Sample output is based on
multiple dry runs for 2.7.2b1 and Java 8.

jeff5/jython-devguide,jeff5/jython-devguide,jython/devguide,jython/devguide,jeff5/jython-devguide,jython/devguide