Finished catching up to 1.7 functionality.

griffon-app/lifecycle/Initialize.groovy

@@ -19,6 +19,21 @@
 
 import groovy.swing.SwingBuilder
 import griffon.util.GriffonPlatformHelper
+import org.apache.log4j.Logger
 
 GriffonPlatformHelper.tweakForNativePlatform(app)
-SwingBuilder.lookAndFeel('mac', 'nimbus', 'gtk', ['metal', [boldFonts: false]])
+SwingBuilder.lookAndFeel('system', 'nimbus', ['metal', [boldFonts: false]])
+
+ Logger.metaClass.traceIfEnabled = { String message, Throwable t = null ->
+    if (delegate.isTraceEnabled()) {
+        if (t != null) delegate.trace(message, t)
+        else delegate.trace(message)
+    }
+ }
+
+ Logger.metaClass.debugIfEnabled = { String message, Throwable t = null ->
+    if (delegate.isDebugEnabled()) {
+        if (t != null) delegate.debug(message, t)
+        else delegate.debug(message)
+    }
+}

griffon-app/lifecycle/Startup.groovy

@@ -15,4 +15,5 @@
  * - SwingBuilder.doLater { // your code }
  * - SwingBuilder.edt { // your code }
  * - SwingUtilities.invokeLater { // your code }
- */
+ */
+