Added src jar generation when executing 'jar' target

git-svn-id: http://protobuf-java-format.googlecode.com/svn/trunk@23 baf96600-647d-11de-8fc2-3351cd7166e9

Author: aantono@gmail.com

protobuf-java-format/build.xml

@@ -50,6 +50,9 @@
 			<include name="com/**/*" />
 			<include name="**/*.txt" />
 		</jar>
+        <jar  jarfile="${target}/${name}-src-${version}.jar" basedir="${src}/java" >
+            <include name="**/*.java" />
+        </jar>
 	</target>
 
 	<target name="compile.test" depends="compile,compile.protoc">