Adding gradlew task.
Now booting a connectable instance and providing a key with which to connect.
Merge pull request #24 from tobyclemson/connectable-instance

Now booting a connectable instance and providing a key with which to connect.
Merge pull request #25 from tobyclemson/gradlew

Adding gradlew task.
Publishing successful artifacts to S3, switching off failing acceptance
tests and adding gradle wrapper.
Fixing typo in artifact publish command.
Hopefully fixing to which the location artifacts are uploaded.
Fixing integration tests.