ccnx: Added verifier and a few small changes

Change-Id: Idbdc0597bd9afb3cfa7c7bbc05175ca8aa1c6b1b
diff --git a/ccnx/ccnx-wrapper.h b/ccnx/ccnx-wrapper.h
index 418dde5..f3438c9 100644
--- a/ccnx/ccnx-wrapper.h
+++ b/ccnx/ccnx-wrapper.h
@@ -93,7 +93,7 @@
   putToCcnd (const Bytes &contentObject);
 
   bool
-  verifyPco(PcoPtr &pco);
+  checkPcoIntegrity(PcoPtr &pco);
 
   PcoPtr
   get (const Name &interest, const Selectors &selector = Selectors(), double maxWait = 4.0/*seconds*/);