XD-1481 - Remove spring-xd-analytics-ml-pmml project

Removed from the build.
Updated spring-xd-analytics-ml with implementation/tests in https://github.com/thomasdarimont/spring-xd/tree/feature/XD-1420
Fix UI build dependent task

- Make `:spring-xd-dirt:installApp` dependsOn `:spring-xd-ui:setupUI`