[FEATURE] search by custom pattern in "untranslated only" messages

[kichawa]

• Which version of Django are you using?:
  Django==1.9.3
• Which version of django-rosetta are you using?:
  django-rosetta==0.7.11
• Have you looked trough recent issues and checked this isn't a duplicate?
  yes

Is there any change to combine searching by custom pattern and filtering by for example 'untranslated only'?
I would like to fix it in the future.

https://github.com/mbi/django-rosetta/blob/develop/rosetta/views.py#L207-L219

[mbi]

Sounds like a pretty good idea, I'd definitely accept a PR if it includes tests. I think what you'd need to do is evaluate a list of entries based on the filters, then filter that list further via the search term, and finally pass the result to the Paginator.