Fix shop_controller

Gemfileにhttpclientを追加
shop controllerにぐるナビAPIのリクエストを追加（途中）
Add Shop class
Add view of shop list
Refactor shops controller
Use bootstrap
Merge branch 'func_shops_view' of github.com:esodov/wassermann into func_shops_view

Conflicts:
	app/views/shops/index.html.erb