Fixed javadocs.
diff --git a/apps/foo/src/main/java/org/onlab/onos/foo/package-info.java b/apps/foo/src/main/java/org/onlab/onos/foo/package-info.java
new file mode 100644
index 0000000..6372772
--- /dev/null
+++ b/apps/foo/src/main/java/org/onlab/onos/foo/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * Sample application for use in various experiments.
+ */
+package org.onlab.onos.foo;
\ No newline at end of file