Move launch4j directives into the package-win.

This way when not trying to build for windows you don't need launch4j
installed and configured on your system.

Author: GraylinKim

build.xml

@@ -12,9 +12,6 @@
 	<property name="resourcesFolder" value="release/release-resources"/>
 	<property name="buildFolder"     value="build"/>
 
-	<property name="launch4j.dir" location="C:\Program Files (x86)\Launch4j" />
-	<taskdef name="launch4j" classname="net.sf.launch4j.ant.Launch4jTask" classpath="${launch4j.dir}/launch4j.jar :${launch4j.dir}/lib/xstream.jar" />
-	
 	<target name="clean">
 		<delete dir="build"/>
 	</target>
@@ -49,6 +46,9 @@
 	</target>
 
 	<target name="package-win" depends="package">
+	    <property name="launch4j.dir" location="C:\Program Files (x86)\Launch4j" />
+	    <taskdef name="launch4j" classname="net.sf.launch4j.ant.Launch4jTask" classpath="${launch4j.dir}/launch4j.jar :${launch4j.dir}/lib/xstream.jar" />
+
 		<mkdir dir="build/gguploader-win/libs" />
 		<copy todir="build/gguploader-win/libs">
 			<fileset dir="build/gguploader/libs" />