fix: big update for java callouts

[DinoChiesa]

• update buildsetup.sh scripts to point to the new repo, which is in Artifact Repository

• the script also installs the JARs into different groupid's, in alignment with the documentation page "how to create a Java callout".

• modify the deploy.sh script to emit a message saying that it is intended to work only with Apigee Edge.

• update all the pom.xml files to refer to those new groupid's, and the new repository, and also to remove extraneous stuff. and get current on plugin versions, and Java SE version (1.8).

• add the appropriate copyright notice to the script, and to the Java sources.

• modify the policy names to conform to Apigeelint recommendations.

• reformat the Java source code with google-java-format

• remove the http callout in the java-cookbook - this is now prohibited by Apigee permissions restrictions! (though it can be relaxed in hybrid)

[DinoChiesa]

Whoa! Supa-fast, like lightning!