Fix UI build dependent task

- Make `:spring-xd-dirt:installApp` dependsOn `:spring-xd-ui:setupUI`
XD-1469: Fix aggreator correlation
Upgrade to Spring Boot 1.0.1
Add more verbose curl output and pauses.

Test 4 is failing consistently on the CI server with
no obvious reason, so trying to eliminate possibility
of a race condition.
XD-1491, XD-1492 Support Container Attributes

Added --groups command line arg

Renamed ContainerMetadata to ContainerAttributes
XD-1506 Adding admin-ui to YARN zip packaging
Fix footer content on the UI

- Update license to read "Code licensed under Apache Open Source"
Fixed AbstractSingleNodeStreamDeploymentIntegrationTests

flipped if/else while merging