A Tomcat run with a WAR from a nested Maven module failed with "The built WAR artifact does not exist": the artifact path query was evaluated for the reactor parent, not the selected module.
The build now resolves the selected POM's effective identity first, using the same options and environment as the build, and asks for that project's artifact. Custom outputs, .mvn settings and root modules are covered, Gradle WAR manifests are written as UTF-8, and Tomcat deployment errors now name the checked path.
Fixes#515
