[#574] Remove code and templates that was used for the SMS updates
[#574] Remove reference to SmsReporter in rsr/management.py
[#574] Merge branch 'feature/django-upgrade' into feature/du574_remove_sms
[#574] Create migration for the SMS removal

The migration deletes the SmsReporter model and the phone_number and
validation fields of the UserProfile.

Also remove the fixture that was only populating models used by the SMS
models.
[#574] Merge branch 'feature/django-upgrade' into feature/du574_remove_sms

Conflicts:
	akvo/templates/notification/notice_settings.html
	akvo/templates/rsr/myakvo/navigation.html
Merge pull request #577 from akvo/feature/du574_remove_sms

#574 remove sms