Edit for Product History
removed unnecessary controller action
Add test to product
Change the migration to use reference and add index
Add FK
Merge pull request #7 from jamesy829/product-history

Product history
WIP
Updated README.md
Add product view
Merge pull request #9 from jamesy829/product-view

Product view
Merge branch 'master' into bootstrap

* master:
  Add product view
  Updated README.md
  WIP
  Add FK
  Change the migration to use reference and add index
  Add test to product
  removed unnecessary controller action
  Edit for Product History

Conflicts:
	Gemfile