Increment sbt to 0.13.16

ashawley · ashawley · commit b67695ec6444 · 2017-10-05T15:56:46.000-04:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.15
+sbt.version=0.13.16
