Prepare for Azure Management Libraries for Java 1.3.0

Steps to migrate code that uses Azure Management Libraries for Java from 1.2 to 1.3 ...

If this note missed any breaking changes, please open a pull request.

V1.3 is backwards compatible with V1.2 in the APIs intended for public use that reached the general availability (stable) stage in V1.0.

There were no breaking changes introduced even in APIs that were still in Beta in V1.2 (as indicated by the @Beta annotation).