Adds Rollbar support for exceptions

Also formats exceptions in case they are unprintable

django_q/conf.py

@@ -128,6 +128,9 @@ class Conf(object):
     # The redis stats key
     Q_STAT = 'django_q:{}:cluster'.format(PREFIX)
 
+    # Optional Rollbar key
+    ROLLBAR = conf.get('rollbar', {})
+
     # OSX doesn't implement qsize because of missing sem_getvalue()
     try:
         QSIZE = Queue().qsize() == 0
@@ -160,6 +163,21 @@ if not logger.handlers:
     handler.setFormatter(formatter)
     logger.addHandler(handler)
 
+# rollbar
+if Conf.ROLLBAR:
+    rollbar_conf = Conf.ROLLBAR
+    try:
+        import rollbar
+        rollbar.init(rollbar_conf.pop('access_token'), environment=rollbar_conf.pop('environment'), **rollbar_conf)
+    except ImportError:
+        rollbar = None
+
+else:
+    rollbar = None
+
+
+
+
 
 # get parent pid compatibility
 def get_ppid():