pushing changes from ramyaps:fork to master Dec 02

1) verified and modified view and edit items page
2) updated the style.css to add background color for input[readonly]
3) Added link to view products page from sell.php
4) Updated sold_history.php to allow seller to change status to "Delivered'
5) Udpated order.php to save the order status
6) customizing order detail.php and order.php according to the profile:buyer or seller