Add fixtures with fake data into applications. Closes #5.

* Add fake media.
* Add initial data for mixture and category apps.
Merge branch 'issue#5-Add_fixtures_+_dev_media' into develop
Retore format to navigation links.
Merge branch 'hotfix' into develop
Add category & mixture matches into search result view. Closes #3.

* Restore format to navigation links.
* Add style to fix position of 'search' text.
* Add class Searchable.
* Add implementation for searchable models.
* Change search queryset using search() method on manager.
* Add h1 header level to category name.
* Crop photos on carousel in home.
* Add category results to search view.
Merge branch 'issue#3-Search_result_must_show_all_that_matches' into develop
Merge branch 'develop'