fix date format in Changes.txt...bad for release process
@@ -2,7 +2,7 @@ Release 2.0.0 - ???
* Add a parser for XPS (TIKA-2524).
-Release 1.17 - December 8, 2017
+Release 1.17 - 12/8/2017
***NOTE: THIS IS THE LAST VERSION OF TIKA THAT WILL RUN
ON Java 7. The next versions will require Java 8***
