Fix conflicting settings (leave_locale_alone/can_import_settings)
Review after some tests:
  - replace :// with // ;
  - fixed message.error(..., ...) - missing http request;
  - fixed "{% url" with non-empty first argument, see django documentation;
  - beatify: replace " with ' in "{% url", see django documentation, indentation.
Review after some tests:
  - replace :// with // ;
  - fixed call to message.error(..., ...) - missing http request;
  - fixed "{% url" with non-empty first argument, see django documentation;
  - beautify: replace " with ' in "{% url", see django documentation, indentation.

Merge branch 'master' of https://github.com/kleptog/DDTSS-Django

Conflicts:
	src/ddtp/ddtp_web/management/commands/generate_secret_key.py