Merge branch 'hotfixes' into 'release/1.12'

Hotfixes

See merge request !702

requirements.txt

-Django>=1.11,<2.0
+Django>=1.11.10,<2.0
 django-localflavor>=1.4,<1.5
 Pillow>=4.1.0,<4.2.0
 django-compressor>=2.1,<3

website/events/emails.py

@@ -22,7 +22,7 @@ def notify_first_waiting(request, event):
         text_template = get_template('events/member_email.txt')
 
         if first_waiting_member.profile:
-            language = first_waiting_member.member.language
+            language = first_waiting_member.profile.language
         else:
             language = Profile._meta.get_field('language').default