Tell the SDK that ApiDemoes requires Eclair preview.

After the preview we'll change it to the final API level.

BUG 2141157
diff --git a/samples/ApiDemos/default.properties b/samples/ApiDemos/default.properties
index 9d79b12..4e561dc 100644
--- a/samples/ApiDemos/default.properties
+++ b/samples/ApiDemos/default.properties
@@ -8,4 +8,4 @@
 # project structure.
 
 # Project target.
-target=android-4
+target=android-Eclair