Let the FormBuilder take responsibility for translated text inputs
Text inputs for right-to-left languages should show text right-to-left
Update edition translations to use right-to-left aware form builder
Use object in preference to @object
Use `dir` attribute to indicate right-to-leftness of inputs
Merge pull request #253 from alphagov/admin-right-to-left-content

Allow administration of content in right-to-left languages