Move -Xfatal-warnings to commonSettings

Author: nicolasstucki

project/Build.scala

@@ -121,6 +121,8 @@ object Build {
     scalacOptions ++= Seq(
       "-feature",
       "-deprecation",
+      "-unchecked",
+      "-Xfatal-warnings",
       "-encoding", "UTF8",
       "-language:existentials,higherKinds,implicitConversions"
     ),
@@ -574,11 +576,6 @@ object Build {
       // Add git-hash used to package the distribution to the manifest to know it in runtime and report it in REPL
       packageOptions += ManifestAttributes(("Git-Hash", VersionUtil.gitHash)),
 
-      scalacOptions ++= Seq(
-        "-Xfatal-warnings",
-        "-unchecked"
-      ),
-
       // http://grokbase.com/t/gg/simple-build-tool/135ke5y90p/sbt-setting-jvm-boot-paramaters-for-scala
       // packageAll should always be run before tests
       javaOptions ++= {