AI 144935: ApiDemos contains new API, and we must force the target to cupcake.
  BUG=1575649

Automated import of CL 144935
diff --git a/samples/ApiDemos/default.properties b/samples/ApiDemos/default.properties
new file mode 100644
index 0000000..4513a1e
--- /dev/null
+++ b/samples/ApiDemos/default.properties
@@ -0,0 +1,11 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+# 
+# This file must be checked in Version Control Systems.
+# 
+# To customize properties used by the Ant build system use,
+# "build.properties", and override values to adapt the script to your
+# project structure.
+
+# Project target.
+target=android-3