Fix build version for split-out artifacts

Change-Id: Ic45543eb5cfac609aaa6cd7f61a5cdc863156d8b
diff --git a/build.gradle b/build.gradle
index f181f75..3a5be53 100644
--- a/build.gradle
+++ b/build.gradle
@@ -268,6 +268,7 @@
         into archivesBaseName
         destinationDir project.parent.ext.distDir
         baseName = project.group
+	version = project.parent.ext.buildNumber
     }
     project.parent.createArchive.dependsOn createSeparateZip