Modify (boolean) to (Boolean) in xpath.evaluate's return type
conversion for java 6 and lower
Delete redudant catch, throw for Java 6 in net.HttpResponseHandler
	try { } finally { } block is sufficient
Add ant build file `build.xml'
    Two tasks included, one is `compile', another is `run'
    type `ant run -Dconffile=path/to/your/conf' to run directly
    from build