Merge speaker migrations

Two different changes have updated the speaker model; this creates a
migration that merges the changes.

vendor/symposion/speakers/migrations/0005_merge_20170917_1248.py

@@ -0,0 +1,16 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.5 on 2017-09-17 02:48
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('symposion_speakers', '0004_auto_20170702_2250'),
+        ('symposion_speakers', '0004_auto_20170731_2232'),
+    ]
+
+    operations = [
+    ]