Agile Multiple Seller 3.1.0.1

[shokinro]

Version 3.1.0.1 - 2015.06.15
New features
- A new seller sign up page separated from general customer sign up, configurable to use customer signup page for seller signup or not
- Changed to log the seller ID when seller changed order status from front store seller management panel(Orders tab).
- Media server access available for sellers - Sellers can upload private images and use the images in product description, seller business info description and any HTML fields at both back office or front Seller Manager Panel.
- Seller is able to duplicate/copy an existing product
- Add validation to prevent sellers from using the same email address of other employee (of back office).
- Seller is able to copy main store product from existing catalogue by searching catalogue (seller can only search main store product or the seller's product)
- It is configurable for admin to allow seller to copy products from main store or not

Bug fixes
- Sorting and Filtering function at product list page at front Seller Management Panel
- seller commission calculation related to shipping tax (exclude tax)
- fixed an error when preview a product from back office if it is not approved or not active.
- some admin tan-menu from module will disappear on some some specific pages such as "Permissions" page.