Update request future (#1)

* Update requirements.txt

* Update handlers.py

deprecate 'background_callback', use hooks

loggly/handlers.py

@@ -9,10 +9,12 @@
 session = FuturesSession()
 
 
-def bg_cb(sess, resp):
+
+def bg_cb(resp, *args, **kwargs):
     """ Don't do anything with the response """
     pass
 
+session.hooks['response'] = bg_cb
 
 class HTTPSHandler(logging.Handler):
     def __init__(self, url, fqdn=False, localname=None, facility=None):
@@ -31,8 +33,8 @@ def get_full_message(self, record):
     def emit(self, record):
         try:
             payload = self.format(record)
-            session.post(self.url, data=payload, background_callback=bg_cb)
+            session.post(self.url, data=payload)
         except (KeyboardInterrupt, SystemExit):
             raise
         except:
-            self.handleError(record)
+            self.handleError(record)

requirements.txt

@@ -2,4 +2,4 @@ coverage==3.7.1
 flake8==2.1.0
 mock==1.0.1
 nose==1.3.0
-requests-futures==0.9.4
+requests-futures>=0.9.9