Update plugin and dependency versions. Remove unused settings, imports, etc.

Plugin version updates:
- scalastyle 0.3.2 -> 0.8.0
- pgp 1.0.0 -> 1.0.1
- release 0.8.5 -> 1.0.3
- scalajs 0.6.9 -> 0.6.12

Dependency version updates:
- mockito 1.9.5 -> 1.10.19

Author: gslowikowski

project/Scoverage.scala

@@ -1,21 +1,17 @@
-import sbt.Keys._
 import sbt._
-import sbtrelease.ReleasePlugin
-import sbtrelease.ReleasePlugin.ReleaseKeys
+import sbt.Keys._
+import sbtrelease.ReleasePlugin.autoImport._
 import com.typesafe.sbt.pgp.PgpKeys
+import org.scalajs.sbtplugin.ScalaJSPlugin.autoImport._
 import org.scalajs.sbtplugin.cross.CrossProject
 import org.scalajs.sbtplugin.cross.CrossType
-import org.scalajs.sbtplugin.ScalaJSPlugin
-import org.scalajs.sbtplugin.ScalaJSPlugin.autoImport._
 
 object Scoverage extends Build {
 
   val Org = "org.scoverage"
-  val MockitoVersion = "1.9.5"
+  val MockitoVersion = "1.10.19"
   val ScalatestVersion = "3.0.0"
 
-  lazy val LocalTest = config("local") extend Test
-
   val appSettings = Seq(
     organization := Org,
     scalaVersion := "2.11.8",
@@ -25,13 +21,11 @@ object Scoverage extends Build {
     publishArtifact in Test := false,
     parallelExecution in Test := false,
     scalacOptions := Seq("-unchecked", "-deprecation", "-feature", "-encoding", "utf8"),
-    resolvers := ("releases" at "https://oss.sonatype.org/service/local/staging/deploy/maven2") +: resolvers.value,
     concurrentRestrictions in Global += Tags.limit(Tags.Test, 1),
-    javacOptions := Seq("-source", "1.6", "-target", "1.6"),
     publishTo <<= version {
       (v: String) =>
         val nexus = "https://oss.sonatype.org/"
-        if (v.trim.endsWith("SNAPSHOT"))
+        if (v.trim.endsWith("-SNAPSHOT"))
           Some(Resolver.sonatypeRepo("snapshots"))
         else
           Some("releases" at nexus + "service/local/staging/deploy/maven2")
@@ -60,9 +54,9 @@ object Scoverage extends Build {
     pomIncludeRepository := {
       _ => false
     }
-  ) ++ ReleasePlugin.releaseSettings ++ Seq(
-    ReleaseKeys.crossBuild := true,
-    ReleaseKeys.publishArtifactsAction := PgpKeys.publishSigned.value
+  ) ++ Seq(
+    releaseCrossBuild := true,
+    releasePublishArtifactsAction := PgpKeys.publishSigned.value
   )
 
   lazy val root = Project("scalac-scoverage", file("."))

project/plugins.sbt

@@ -1,9 +1,7 @@
-resolvers += Classpaths.sbtPluginReleases
+addSbtPlugin("org.scalastyle" %% "scalastyle-sbt-plugin" % "0.8.0")
 
-addSbtPlugin("org.scalastyle" %% "scalastyle-sbt-plugin" % "0.3.2")
+addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.0.1")
 
-addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.0.0")
+addSbtPlugin("com.github.gseitz" % "sbt-release" % "1.0.3")
 
-addSbtPlugin("com.github.gseitz" % "sbt-release" % "0.8.5")
-
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.9")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.12")