Repo containing the completed Aggregate API tutorial and associated docs.

• ./gradlew should be the go-to local command to run when developing. It will run ./gradlew format, ./gradlew static and ./gradlew check.
• ./gradlew format will format the code using Spotless.
• ./gradlew static will run static code analysis, i.e. Spotbugs and Checkstyle.
• ./gradlew check will run all checks and tests.
• ./gradlew coverage will generate a cross-module Jacoco coverage report.