[#123]Two Different SEO link for one product

1. Remove duplication - product url in the categories,
new products and specials products listing page

For example:

The product url in the categories is:
http://www.g1185.me/1-laptop/6-13-3-macbook-air-apple-z0fs0ll-a.html

The product url in the new products and specials is same:
http://www.g1185.me/1-laptop/6-13-3-macbook-air-apple-z0fs0ll-a.html

2. Using rel=”canonical” links to remove the duplication in 
the products listing searched by manufacturer

For example:

<link rel="canonical"
href="http://www.g1185.me/1-laptop/6-13-3-macbook-air-apple-z0fs0ll-a.html">

In this way, the search engine could know which product url 
should be indexed.

3. Make the urls of new products and specials be seo friendly

For example:
http://www.g1185.me/new-products.html
http://www.g1185.me/specials.html