Make sure arg to logRaw and log are only eval'ed once.

Stu pointed this out in https://rbcommons.com/s/twitter/r/2315/ after I submitted the PR.
The parameter `message` is passed by name, and so the argument might get evaluated in isFiltered() and in the logging function itself.
Also got rid of a deprecation warning for `ConsoleLogger.stdout`

Testing Done:
Patched in locally.

Bugs closed: 1655

Reviewed at https://rbcommons.com/s/twitter/r/2338/

src/scala/org/pantsbuild/zinc/Util.scala

@@ -5,7 +5,7 @@
 package org.pantsbuild.zinc
 
 import java.io.File
-import sbt.{ ConsoleLogger, Hash, IO, Level, Logger }
+import sbt.{ ConsoleLogger, ConsoleOut, Hash, IO, Level, Logger }
 import scala.util.matching.Regex
 
 object Util {
@@ -21,20 +21,22 @@ object Util {
     if (quiet) {
       new SilentLogger
     } else {
-      val out = ConsoleLogger.systemOut
+      val out = ConsoleOut.systemOut
       val consoleLogger = ConsoleLogger(out = out, useColor = ConsoleLogger.formatEnabled && color); consoleLogger.setLevel(level)
       new LoggerRaw() {
         def isFiltered(message: => String): Boolean = {
           filters.exists(_.findFirstIn(message).isDefined)
         }
         def trace(t: => Throwable): Unit = consoleLogger.trace(t)
         def success(message: => String): Unit = consoleLogger.success(message)
-        def log(level: Level.Value, message: => String): Unit = {
+        def log(level: Level.Value, msg: => String): Unit = {
+          lazy val message = msg
           if (!isFiltered(message)) {
             consoleLogger.log(level, message)
           }
         }
-        def logRaw(message: => String): Unit = {
+        def logRaw(msg: => String): Unit = {
+          lazy val message = msg
           if (!isFiltered(message)) {
             out.print(message)
           }