Merge pull request #52 from scala-steward/update/future-2.0.0

Update future to 2.0.0

Author: Atry

covariant/build.sbt.shared

@@ -6,7 +6,7 @@ addCompilerPlugin("org.spire-math" %% "kind-projector" % "0.9.3")
 
 libraryDependencies += "org.scalatest" %%% "scalatest" % "3.0.3" % Test
 
-libraryDependencies += "com.thoughtworks.future" %%% "future" % "2.0.0-M1" % Test
+libraryDependencies += "com.thoughtworks.future" %%% "future" % "2.0.0" % Test
 
 scalacOptions += "-Xexperimental" // Enable SAM type for Scala 2.11