[enh] settings.py added

.gitignore

 env
-searx.conf
+settings.py

searx/settings.py

+
+port = 8888
+
+secret_key = "ultrasecretkey" # change this!
+
+debug = False
+
+weights = {} # 'search_engine_name': float(weight) | default is 1.0
+
+blacklist = [] # search engine blacklist
+
+categories = {} # custom search engine categories

searx/webapp.py

 import ConfigParser
 from os import getenv
 from searx.engines import search, categories
+from searx import settings
 import json
 
 cfg = ConfigParser.SafeConfigParser()
 
 
 app = Flask(__name__)
-app.secret_key = cfg.get('app', 'secret_key')
+app.secret_key = settings.secret_key
 
 opensearch_xml = '''<?xml version="1.0" encoding="utf-8"?>
 <OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/">
     from gevent import monkey
     monkey.patch_all()
 
-    app.run(debug        = cfg.get('server', 'debug')
-           ,use_debugger = cfg.get('server', 'debug')
-           ,port         = int(cfg.get('server', 'port'))
+    app.run(debug        = settings.debug
+           ,use_debugger = settings.debug
+           ,port         = settings.port
            )