Add paginate_by to QuestionListView
Add pagination
Merge branch 'pagination' into develop

Add pagination to QuestionListView
Add category link
Change category from badge to button
Add question created date
Improve answers design
Merge branch 'question_detail_design' into develop

Improve general design of question:detail
Add question query in CategoryDetailView
Fix import problem
Add test for 565764b
Remove setUp and place CategoryFactory in test_list_view.
Rename the right method
Fix wrong variable
Add design
Merge branch 'category_detail' into develop

Add Category question.
Initial commit
Initial commit
Merge branch 'error_pages' into develop

Add 404 and 500 error pages.