Added cart summary template
Added login template
Merge branch 'feature/ec-45-cart-summary' into feature/ec-47-login-template

Conflicts:
	app/jsx/components/_partials/header.js
Merge branch 'develop' into feature/ec-47-login-template

Conflicts:
	app/jsx/actions/product-actions.js
	app/jsx/components/_partials/add-to-cart.js
	app/jsx/components/_partials/cart-button.js
	app/jsx/components/_partials/header.js
	app/jsx/constants/app-constants.js