Added referer field to http.py, as to make it possible to use a referer. I

don't know if this was possible before, and if it was it should be removed
and the appropriate changes should be made without the http.py change.

Stock plugin output was changed so the percent change has an actual
percentage sign after it.

UrbanDictionary plugin was changed to use a referer because it didn't work
without it.

plugins/dictionary.py

@@ -9,7 +9,7 @@ def urban(inp):
     '''.u/.urban <phrase> -- looks up <phrase> on urbandictionary.com'''
 
     url = 'http://www.urbandictionary.com/iphone/search/define'
-    page = http.get_json(url, term=inp)
+    page = http.get_json(url, term=inp, referer="http://m.urbandictionary.com")
     defs = page['list']
 
     if page['result_type'] == 'no_results':

plugins/stock.py

@@ -28,7 +28,7 @@ def stock(inp):
         results['color'] = "3"
 
     ret = "%(company)s - %(last)s %(currency)s "                   \
-          "\x03%(color)s%(change)s (%(perc_change)s)\x03 "        \
+          "\x03%(color)s%(change)s (%(perc_change)s%%)\x03 "        \
           "as of %(trade_timestamp)s" % results
 
     if results['delay'] != '0':

plugins/util/http.py

@@ -37,7 +37,7 @@ def get_json(*args, **kwargs):
     return json.loads(get(*args, **kwargs))
 
 
-def open(url, query_params=None, user_agent=None, post_data=None,
+def open(url, query_params=None, user_agent=None, referer=None, post_data=None,
          get_method=None, cookies=False, **kwargs):
 
     if query_params is None:
@@ -57,6 +57,9 @@ def open(url, query_params=None, user_agent=None, post_data=None,
 
     request.add_header('User-Agent', user_agent)
 
+    if referer is not None:
+        request.add_header('Referer', referer)
+
     if cookies:
         opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(jar))
     else: