[mod] import restructure

searx/webapp.py

 (C) 2013- by Adam Tauber, <asciimoo@gmail.com>
 '''
 
+import json
+import cStringIO
+import os
+
 from searx import settings
 from flask import Flask, request, render_template
 from flask import url_for, Response, make_response, redirect
 from searx.engines import search, categories, engines, get_engines_stats
-import json
-import cStringIO
 from searx.utils import UnicodeWriter
 from flask import send_from_directory
 from searx.utils import highlight_content, html_to_text
 
 
-import os
-
-
 app = Flask(
     __name__,
     static_folder=os.path.join(os.path.dirname(__file__), 'static'),