Update Test-Control gradle docs

// merge resources and classes dir since we are doing JEE/CDI
sourceSets {
    main {
        output.resourcesDir = 'build/classes/main'
        output.classesDir   = 'build/classes/main'
    }
    test {
        output.resourcesDir = 'build/classes/test'
        output.classesDir   = 'build/classes/test'
    }
}

// exclude duplicates since we merge classes and resources dir
jar {
    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
}