I have taken the scalatra sample and run sbt gen-idea (sbt version 0.11.3). The resulting project does not contain a web facet and an artifact, that can be deployed to a Tomcat or Jetty inside of IDEA Ultimate Edition, is also not created.
Btw, when a web facet would be generated, it would have a deploymentDescriptor configured. Since Servlet 3.0 a web.xml is not required anymore, thus the configuration should be optional.
I have taken the scalatra sample and run sbt gen-idea (sbt version 0.11.3). The resulting project does not contain a web facet and an artifact, that can be deployed to a Tomcat or Jetty inside of IDEA Ultimate Edition, is also not created.
Btw, when a web facet would be generated, it would have a deploymentDescriptor configured. Since Servlet 3.0 a web.xml is not required anymore, thus the configuration should be optional.