Update the Jar Manifest according to http://jakarta.apache.org/commons/releases/prepare.html

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/codec/trunk@130245 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

src/conf/MANIFEST.MF

@@ -1,5 +1,7 @@
 Extension-Name: @package@
+Specification-Title: Jakarta Commons Codec
 Specification-Vendor: Apache Software Foundation
-Specification-Version: 1.0
+Specification-Version: @version@
+Implementation-Title: @package@
 Implementation-Vendor: Apache Software Foundation
-Implementation-Version: @version@
+Implementation-Version: @version@