ccnx: Rename Key to Cert; fix bug with the usage of Hash

Change-Id: Ic7656e6d8d46729d663ccfa5412e78443aff76bc
diff --git a/wscript b/wscript
index 76afad9..0021e41 100644
--- a/wscript
+++ b/wscript
@@ -192,7 +192,7 @@
         defines = "WAF",
         source = bld.path.ant_glob(['fs-watcher/*.cc']),
         use = "SQLITE3 LOG4CXX scheduler executor QTCORE",
-        includes = "fs-watcher scheduler executor src",
+        includes = "fs-watcher scheduler executor src ccnx",
         )
 
     # Unit tests