add an option to config the index path (#123)

Author: itrethan

README.md

@@ -62,6 +62,9 @@ app.use(webpackMiddleware(webpack({
 	publicPath: "/assets/",
 	// public path to bind the middleware to
 	// use the same as in webpack
+	
+	index: "index.html",
+	// the index path for web server
 
 	headers: { "X-Custom-Header": "yes" },
 	// custom headers

middleware.js

@@ -218,7 +218,7 @@ module.exports = function(compiler, options) {
 				var stat = fs.statSync(filename);
 				if(!stat.isFile()) {
 					if(stat.isDirectory()) {
-						filename = pathJoin(filename, "index.html");
+						filename = pathJoin(filename, options.index || "index.html");
 						stat = fs.statSync(filename);
 						if(!stat.isFile()) throw "next";
 					} else {