Merge pull request #3 from TungPro/master

Add feature Facebook Login
Add Access Control List (acl)
Add image selector
Change forms view and add setting controller
Add buy item feature
Find and Display items which are on sale
Improve buy items. Add requests
Accept, Reject, Cancel invoices
Add invoices log in item view page
Change items status via AJAX in my items page
Add edit item selling page
Add Requests Feature
Add available items page and Add pagination
Add about and contact page
Edit Acl concept
Add FAQs and Inquiries table
Add setting table and fix buy feature
Add Shop Feature
Create items for shop feature
Edit deposit and withdraw action. Improve shop features