Update CHANGELOG.txt:

iam404 · iam404 · commit a68e2f095216 · 2015-10-16T19:08:39.000+05:30
diff --git a/CHANGELOG.txt b/CHANGELOG.txt
@@ -1,5 +1,6 @@
-v 3.3.10 - Oct 16, 2015
+v 3.3.10 - Oct 19, 2015
 - Fix #630
+- Fix #631
 - Updated wp-cli version
 
 v 3.3.9 - Oct 9, 2015
