Merge branch 'develop' into 'master'

Remove unused class translation

See merge request !68

courses/translation.py

@@ -3,7 +3,6 @@ from .models import Course, Lesson, Unit, ProfessorMessage
 from .course_material.models import CourseMaterial, File
 from .stats.models import AccessibleArea
 from .certification.models import CertificateTemplate
-from django.contrib.flatpages.models import FlatPage
 
 
 @register(Course)
@@ -50,7 +49,3 @@ class CertificateTemplateTranslationOptions(TranslationOptions):
               'base_logo', 'signature', 'second_signature', 'site_logo',
               'organization_name', 'text')
 
-
-@register(FlatPage)
-class FlatPageTranslationOptions(TranslationOptions):
-    fields = ('url', 'title', 'content')