Prepare for 2.5.0 release

DAFFODIL-2258
diff --git a/build.sbt b/build.sbt
index 4a7813a..21b5986 100644
--- a/build.sbt
+++ b/build.sbt
@@ -104,7 +104,7 @@
 
 lazy val commonSettings = Seq(
   organization := "org.apache.daffodil",
-  version := "2.5.0-SNAPSHOT",
+  version := "2.5.0",
   scalaVersion := "2.12.6",
   crossScalaVersions := Seq("2.12.6", "2.11.12"),
   scalacOptions ++= Seq(