Update sbt to 1.3.0 (#382)

dwijnand · web-flow · commit dd8be734f1d0 · 2019-09-05T11:37:00.000+01:00
Update sbt to 1.3.0
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.2.8
+sbt.version=1.3.0
