Preparing for 1.4.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@794019 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

src/conf/MANIFEST.MF

@@ -1,7 +1,7 @@
 Extension-Name: org.apache.commons.codec
 Specification-Title: Jakarta Commons Codec
 Specification-Vendor: Apache Software Foundation
-Specification-Version: 1.3
+Specification-Version: 1.4
 Implementation-Title: org.apache.commons.codec
 Implementation-Vendor: Apache Software Foundation
-Implementation-Version: 1.3
+Implementation-Version: 1.4