Added flash notice to show
Styling
slyling
Added association has many exchanges
Added scopes for exchange status
Created pending_exchanges on user model
Top nav fix
Homepage shows suggested swaps
Homepage index view
Added users methods to exchange model.
Added pending_exchanges method to User model
Homepage shows details of swap suggestions.
Added offered_to in Exchange model
Fix for exchange.pending
WIP changes status to accepetd
User can accept or reject swap suggestion.
Wip buttons for accepting and rejecting swap
Moved exchanges to exchanges controller.
Created tabs in exchanges views
Distinguish exchanges offered to user and by user