This is a mixed Lift/Vaadin project with intention of using lift's DataMapper, that allows easy/cheap object persistency in a given project, and Vaadin to have nice UIs. This is also java/scala mixed to use lift (in scala) and Vaadin (in java).
You should have SBT installed.
Also you should make sure that web.xml is (after compilation) in the right folder (default is /target/scala***/webapps/WEB-INF/
Give me some :)