Update weblate/html/mail/new_translation.html
Update weblate/html/mail/changed_translation.html
Update weblate/html/mail/new_suggestion.html
Update weblate/trans/models.py
Update weblate/html/widgets-root.html

Not sure of the meaning of last sentence.
Update weblate/trans/views.py
Merge pull request #191 from lem9/master

English improvements, clarifications