JCRVLT-321 Warn for files not being included in the package due to being outside of filter roots (closes #19)
jackrabbit/commons/filevault-package-maven-plugin/trunk/src/main/java/org/apache/jackrabbit/filevault/maven/packaging/VaultMojo.java
jackrabbit/commons/filevault-package-maven-plugin/trunk/src/test/resources/test-projects/filter-tests/filter-not-covering-all-files/