Change the SDK, DDMS and Traceview to work with the new SWT libraries.

The SDK now contains 32 and 64 bit version of SWT. DDMS and Traceview
use the archquery java app to check the architecture of the VM to decide
which version of SWT should be used to run the apps.
diff --git a/build/sdk-darwin-x86.atree b/build/sdk-darwin-x86.atree
index 13ed592..19be137 100644
--- a/build/sdk-darwin-x86.atree
+++ b/build/sdk-darwin-x86.atree
@@ -2,12 +2,8 @@
 #
 
 # swt
-lib/libswt-carbon-3236.jnilib tools/lib/libswt-carbon-3236.jnilib
-lib/libswt-pi-carbon-3236.jnilib tools/lib/libswt-pi-carbon-3236.jnilib
-framework/swt.jar tools/lib/swt.jar
-framework/org.eclipse.core.commands_3.2.0.I20060605-1400.jar tools/lib/org.eclipse.core.commands_3.2.0.I20060605-1400.jar
-framework/org.eclipse.equinox.common_3.2.0.v20060603.jar tools/lib/org.eclipse.equinox.common_3.2.0.v20060603.jar
-framework/org.eclipse.jface_3.2.0.I20060605-1400.jar tools/lib/org.eclipse.jface_3.2.0.I20060605-1400.jar
+prebuilt/darwin-x86/swt/swt.jar tools/lib/x86/swt.jar
+
 
 # JetCreator (only available on mac/windows)
 external/sonivox/jet_tools/JetCreator tools/Jet/JetCreator