Add permanent face and route management memchanism

Change-Id: I23e77358e89c49473445994b8bd0c2c425d0e1b0
Refs: #3443
diff --git a/AUTHORS.md b/AUTHORS.md
index c629200..b7b940d 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -19,3 +19,5 @@
 * Sanjeev Mehrotra      <smehrotra@ucla.edu>
 * Zhou Tang             <https://www.linkedin.com/in/zhoutang>
 * Eric Newberry         <https://www.cs.arizona.edu/~enewberry/>
+* Haitao Zhang          <https://irl.cs.ucla.edu/~haitao/>
+* Lei Pi                <lpi@memphis.edu>