Improve documentation and samples.

examples/jse/SampleJseMain.java

@@ -1,18 +1,22 @@
 
-
 import org.luaj.vm2.Globals;
 import org.luaj.vm2.LuaValue;
 import org.luaj.vm2.lib.jse.JsePlatform;
 
+/** Simple program showing the minimal Java program to launch a script. */
 public class SampleJseMain {
 	
-	
 	public static void main(String[] args) throws Exception {
 		String script = "examples/lua/hello.lua";
 		
 		// create an environment to run in
-		Globals _G = JsePlatform.standardGlobals();
-		_G.loadFile(script).arg1().call( LuaValue.valueOf(script) );
+		Globals globals = JsePlatform.standardGlobals();
+		
+		// Use the convenience function on the globals to load a chunk.
+		LuaValue chunk = globals.loadFile(script);
+		
+		// Use any of the "call()" or "invoke()" functions directly on the chunk.
+		chunk.call( LuaValue.valueOf(script) );
 	}