Documenting recent changes.

tinfi/RELEASE_NOTES.txt

@@ -3,6 +3,7 @@ Tinfi 1.6
 * use property values stored in content instances along with the one stored in
   the property controller whenever the value is retrieved from the API of the
   property controller (requested by Philippe)
+* move to Java compliance level 1.8
 * move to Juliac 2.6