Move Queuenames in with the celery code, revamp config to allow move to celery 4.x

app/celery/__init__.py

@@ -0,0 +1,27 @@
+
+class QueueNames(object):
+    PERIODIC = 'periodic-tasks'
+    PRIORITY = 'priority-tasks'
+    DATABASE = 'database-tasks'
+    SEND = 'send-tasks'
+    RESEARCH_MODE = 'research-mode-tasks'
+    STATISTICS = 'statistics-tasks'
+    JOBS = 'job-tasks'
+    RETRY = 'retry-tasks'
+    NOTIFY = 'notify-internal-tasks'
+    PROCESS_FTP = 'process-ftp-tasks'
+
+    @staticmethod
+    def all_queues():
+        return [
+            QueueNames.PRIORITY,
+            QueueNames.PERIODIC,
+            QueueNames.DATABASE,
+            QueueNames.SEND,
+            QueueNames.RESEARCH_MODE,
+            QueueNames.STATISTICS,
+            QueueNames.JOBS,
+            QueueNames.RETRY,
+            QueueNames.NOTIFY,
+            QueueNames.PROCESS_FTP
+        ]