Add two possible product delivery times to each product.
Add datepicker for delivery times to product new.
Fix metro index buttons.
Allow buyer to select delivery time.
Chosen date is transmitted to invoice.
Add signin page
Merge remote-tracking branch 'origin/calendar'

Conflicts:
	app/assets/javascripts/products.js
	app/controllers/charges_controller.rb
Merge branch 'master' into signup_process

Conflicts:
	app/assets/javascripts/line_items.js.coffee
	app/controllers/charges_controller.rb
	db/schema.rb
Add food pictures to buyer show page
Add images to home page
Add modal and reformat
Shopping cart edits
Hide line item show page after purchase