Add missing metadata to the build

Author: dwijnand

build.sbt

@@ -1,5 +1,11 @@
 organization := "com.typesafe.sbt"
 name := "sbt-git"
+licenses := Seq(("BSD-2-Clause", url("https://opensource.org/licenses/BSD-2-Clause")))
+description := "An sbt plugin that offers git features directly inside sbt"
+developers := List(Developer("jsuereth", "Josh Suereth", "joshua suereth gmail com", url("http://jsuereth.com/")))
+startYear := Some(2011)
+homepage := scmInfo.value map (_.browseUrl)
+scmInfo := Some(ScmInfo(url("https://github.com/sbt/sbt-git"), "scm:git:[email protected]:sbt/sbt-git.git"))
 
 sbtPlugin := true