1.0.0-beta.0

Added

• lti_provider django application
• install django-machina forum in the sandbox project
• custom user model, auth backend and LTI handlers in ashley
• standalone LTI consumer to test ashley in development
• permission management and group synchronization based on LTI roles
• asley.machina_extensions.forum application to extend django-machina's
  forum model.
• automatic forum creation based on the context of the LTI launch request
• Instructor and Administrator LTI roles have special permissions on their
  forum.
• customize django-machina to have a basic set of forum features
• i18n support and translations with crowdin
• add basic CSS file in ashley to override machina's stylesheet
• each forum has its own unique LTI launch URL
• wysiwyg editor based on Draft.js

Changed

• Update sandbox settings to be able to run Ashley in an iframe on multiple
  external websites