make examples/wsgiserver.py to return the same replies as httpserver.py so...

make examples/wsgiserver.py to return the same replies as httpserver.py so that they can be tested with the same test

examples/wsgiserver.py

@@ -5,11 +5,11 @@ from gevent import wsgi
 
 def hello_world(env, start_response):
     if env['PATH_INFO'] == '/':
-        start_response('200 OK', [('Content-Type', 'text/plain')])
-        return ["Hello World!\r\n"]
+        start_response('200 OK', [('Content-Type', 'text/html')])
+        return ["<b>hello world</b>"]
     else:
-        start_response('404 Not Found', [('Content-Type', 'text/plain')])
-        return ['Not Found\r\n']
+        start_response('404 Not Found', [('Content-Type', 'text/html')])
+        return ['<h1>Not Found</h1>']
 
 print 'Serving on 8088...'
 wsgi.WSGIServer(('', 8088), hello_world).serve_forever()