docs: Update Changes file

Author: dougwilson

Changes.md

@@ -6,8 +6,10 @@ you spot any mistakes.
 
 ## HEAD
 
-* fix authentication w/password failure for node.js 0.10.5
+* fix authentication w/password failure for node.js 0.10.5 #746 #752
 * fix authentication w/password TypeError exception for node.js 0.10.0-0.10.4
+* fix specifying `values` in `conn.query({...}).on(...)` pattern #755
+* fix long stack trace to include the `pool.query(...)` call #715
 
 ## v2.1.0 (2014-02-20)