GitLab

* origin/master:
  Test against Django 1.10, 1.11, Wagtail 1.9, 1.10
  Fix for incorrect import

Fix for incorrect import

* origin/master:
  iSort all the things
  File input field is no longer required when editing

Make file input field not required when editing

Fix for #17.
Fixes flake8 and isort issues.

Remove compatibility code for unsupported django, wagtail versions

Add Wagtail 1.8 support

Newer versions of flake8 are stricter about some whitespace things, and
picked up a new error in existing code.

This class was removed in Wagtail 1.8, replaced by a few utility
functions.

Video source reorder

Switched the ordering of transcodes so transcodes are preferred. Made the regular template tag use the method from the model

Cleanup, enforce isort and flake8

Added django 1.10 compatibility

Make sure django is 1.8 or higher

Add jinja2 tag

Fix for #7