Add necessary file for TravisCI
diff --git a/.scalafmt.conf b/.scalafmt.conf
new file mode 100644
index 0000000..7084efe
--- /dev/null
+++ b/.scalafmt.conf
@@ -0,0 +1,9 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more contributor
+# license agreements; and to You under the Apache License, Version 2.0.
+
+style = intellij
+danglingParentheses = false
+maxColumn = 120
+docstrings = JavaDoc
+rewrite.rules = [SortImports]
+project.git = true