upgrade sbt 0.13.16 -> 0.13.17

SethTisue · SethTisue · commit 942f189a4801 · 2018-03-23T13:34:56.000-04:00
so we can build this on Java 9 &amp; 10 in the Scala community build
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.16
+sbt.version=0.13.17
