Merge pull request #172 from grobmeier/patch-1

added retired.txt
diff --git a/RETIRED.txt b/RETIRED.txt
new file mode 100644
index 0000000..603a488
--- /dev/null
+++ b/RETIRED.txt
@@ -0,0 +1 @@
+This podling has been retired, please see: http://incubator.apache.org/projects/index.html#spot