Add table quotes and products

new file:   db/migrate/20130715051820_quotes.rb
new file:   db/migrate/20130715052430_products.rb
Add migration for join tble quotes products
new file:   db/migrate/20130715094000_quotes_products.rb
Add models for products and quotes
Add basic relations
new file:   app/models/product.rb
new file:   app/models/quote.rb
new file:   app/models/quotesproduct.rb
Add routes for product and quote
modified:   config/routes.rb