Added persistency layer for query references

Change-Id: I7d3ad7f285a27eec977aaf4f2b68fe85b0e1f228
diff --git a/full/Changes b/full/Changes
index 091921f..f4efc95 100644
--- a/full/Changes
+++ b/full/Changes
@@ -2,7 +2,9 @@
 26/10/2020
    - Updated dependency of nimbus-jose-jwt and oauth2-oidc-sdk (diewald)
 29/10/2020
-   - First introduction of a query reference rewrite (diewald)
+   - Introduction of a query reference rewrite mechanism (diewald)
+30/10/2020
+   - Added database methods for storing query references (diewald) 
 
 # version 0.62.4
 24/01/2020