Add mixture detail template and view.
Add link to mixture detail view.
Remove unused import.
Add class method tree() for category, but must implement test case.
Add category tree in context view
Add category section link mocks.
Add CSS for mixture details.
Add mixture short and logn description fields.
Add footer for base template.
Fix column size for rows.
Add footer style for base.
Remove unused links on navigation bar.
Merge branch 'add-mixture-view' into develop