add table sort function to category list
-- Add table sort function to main.js
-- Modify main.scala.html to add main.js
-- Modify category/index.scala.html thead children(td -> th, add
"table-sort" class)
modify product&supply table sortable
modify first sort set to ASC
Merge branch 'feature/TableSort' into develop
modify play ver 2.1.4->2.1.5
refactor table sort function
-- Remove <span> elem from *.scala.html
-- Add <span> elem function to main.js