Display subsystem information that relates to deployments

Each deployment provides subsystem relevant informations (ejb3, jpa, web, webservices). The deployment view is rebuilt to reflect this structure. Therefore a new "miller columns" widget is introduced. Each column is bound to a subdeployment / subsystem and a context aware detail view. The attached mind map shows the structure and scope of the different columns and context views.

The GWT CellBrowser sample shows how the miller columns could look like.