implement SCALA_DEPLOY_VERSION token in pom_template

git-svn-id: http://scalatest.googlecode.com/svn/trunk@4776 fd1274fd-080f-5963-8033-43ee40fcd1de
implement new.deploy.scala.version for ant redeploy

git-svn-id: http://scalatest.googlecode.com/svn/trunk@4777 fd1274fd-080f-5963-8033-43ee40fcd1de