Add "package-for-store" target to NetBeans build file.

.gitignore

@@ -1,3 +1,4 @@
 /nbproject/private/
 /build/
 /dist/
+/store/

nbbuild.xml

@@ -70,4 +70,39 @@
     nbproject/build-impl.xml file. 
 
     -->
+
+    <target name="package-for-store" depends="jar">
+        <!-- Change the value of this property to be the name of your JAR,
+             minus the .jar extension. It should not have spaces.
+             <property name="store.jar.name" value="MyJarName"/>
+        -->
+        <property name="store.jar.name" value="re7zip"/>
+
+
+        <!-- don't edit below this line -->
+
+        <property name="store.dir" value="store"/>
+        <property name="store.jar" value="${store.dir}/${store.jar.name}.jar"/>
+
+        <echo message="Packaging ${application.title} into a single JAR at ${store.jar}"/>
+
+        <delete dir="${store.dir}"/>
+        <mkdir dir="${store.dir}"/>
+
+        <jar destfile="${store.dir}/temp_final.jar" filesetmanifest="skip">
+            <zipgroupfileset dir="dist" includes="*.jar"/>
+            <zipgroupfileset dir="dist/lib" includes="*.jar"/>
+
+            <manifest>
+                <attribute name="Main-Class" value="${main.class}"/>
+            </manifest>
+        </jar>
+
+        <zip destfile="${store.jar}">
+            <zipfileset src="${store.dir}/temp_final.jar"
+            excludes="META-INF/*.SF, META-INF/*.DSA, META-INF/*.RSA"/>
+        </zip>
+
+        <delete file="${store.dir}/temp_final.jar"/>
+    </target>
 </project>