build.sbt in trackler-2.0.6.19

- old
+ new

@@ -1,3 +1,3 @@
-scalaVersion := "2.11.7"
+scalaVersion := "2.12.1"
 
-libraryDependencies += "org.scalatest" % "scalatest_2.11" % "2.2.5" % "test"
+libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.1" % "test"
\ No newline at end of file