default to Apache 2 license

fixes #48

Author: SethTisue

src/main/scala/ScalaModulePlugin.scala

@@ -127,7 +127,7 @@ object ScalaModulePlugin extends AutoPlugin {
     scmInfo              := Some(ScmInfo(url(s"https://github.com/scala/${repoName.value}"),s"scm:git:git://github.com/scala/${repoName.value}.git")),
     homepage             := Some(url("http://www.scala-lang.org/")),
     organizationHomepage := Some(url("http://www.scala-lang.org/")),
-    licenses             := Seq("BSD 3-clause" -> url("http://opensource.org/licenses/BSD-3-Clause")),
+    licenses             := Seq("Apache-2.0" -> url("https://www.apache.org/licenses/LICENSE-2.0")),
     startYear            := Some(2002),
     pomIncludeRepository := { _ => false },
     pomExtra := (