Update to sbt 1.1.6

jrudolph · jrudolph · commit 65f5e49e77cd · 2018-07-13T12:04:37.000+02:00
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.1.2
+sbt.version=1.1.6
