F19 rpm dependencies

Fedora 19 rpm dependencies are the same as Fedora 18.
* Adding f19 to the 'dept:' list.

Change-Id: I927c31d45ac03b8bddac117e7f501d1255a25200
diff --git a/files/rpms/ryu b/files/rpms/ryu
index 7cf3bd7..0f62f9f 100644
--- a/files/rpms/ryu
+++ b/files/rpms/ryu
@@ -1,5 +1,5 @@
 python-gevent
 python-gflags
 python-netifaces
-python-setuptools #dist:f16,f17,f18
+python-setuptools #dist:f16,f17,f18,f19
 python-sphinx