Overhauled the exporter and added programming language to submission type

core/migrations/0008_auto_20180219_1712.py

+# Generated by Django 2.0.2 on 2018-02-19 17:12
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core', '0007_auto_20180217_2049'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='submissiontype',
+            name='programming_language',
+            field=models.CharField(choices=[('c', 'C syntax highlighting'), ('java', 'Java syntax highlighting')], default='c', max_length=25),
+        ),
+        migrations.AlterField(
+            model_name='submissiontype',
+            name='name',
+            field=models.CharField(max_length=100, unique=True),
+        ),
+    ]