Merge pull request #317 from SethTisue/sbt-0.13.18

SethTisue · web-flow · commit 04d4b06803df · 2019-05-30T16:15:22.000+02:00
upgrade 1.x branch to sbt 0.13.18
diff --git a/project/build.properties b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.17
+sbt.version=0.13.18
