using WHITESPACE only compilation level and pretty printing for an alternative closure CompilerOptions

gistfile1.scala

//in Build.scala
//requires play 2.1!
import com.google.javascript.jscomp._

val defaultOptions = new CompilerOptions()
    defaultOptions.closurePass = true
    CompilationLevel.WHITESPACE_ONLY.setOptionsForCompilationLevel(defaultOptions)
    defaultOptions.setProcessCommonJSModules(true)
    val root = new java.io.File(".")
    defaultOptions.setCommonJSModulePathPrefix(root.getCanonicalPath+"/app/assets/javascript/")
    defaultOptions.setPrettyPrint(true)

val main = PlayProject(appName, appVersion, appDependencies, mainLang = SCALA).settings(
     closureCompilerSettings(defaultOptions):_*     
    )
}