More release steps automated.

- Dockbook references to Spring Data Commons files get updated.
- Updating of notice.txt.
- Gradle projects get Spring Data Commons version and repositories updated.
- Added release commit detection and tagging for cleanup.

Upgraded to Spring Boot 1.0.2.RELEASE.
GitOperations now does a reset before pulling latest changes on train update.
Added functionality to fix the static resources Zip version in the parent pom.xml.
ModuleIteration now returns correct iterations for a custom first iteration.

Previously, ModuleIteration always returned the custom first iteration on every call to getIteration(). We now only do so for the very first iteration.