Add subtitle to products table.
Add subtitle to admin/products pages.
Add subtitle to import file of products.
Add a task to convert product related datum for import.
Show applications on the product list page.
Ignore some files just for import.
Add url to papers table.
Add url field to papers' pages.
Set allow_nil on the validation of pubmed_id.
Change the type of paper title from string to text.
Add the task to reload papers and citations.
Add qsearch to product model.
Add products/search.
Add another products/search route.
Implement the qsearch form.
Add links on prod_category navbar.