Refactor messages seller/buyer
Change inbox routes
Seller product view
Fix products view from seller
So many changes : Add Conversation, Refactor Message, Change several associations, refactor specs
Refactor layout double to simple quotes links
Refactor new message notifier (method + link's views)
Change Message factories
Fix user specs with new version of message/conversaton
Let user to send message through the conversation page
Change inbound method
Fiix messages controllers specs
Merge pull request #52 from AlexKtf/let-user-to-messages-and-has-conversations

Let user to messages and has conversations