[story 012] [zxf&wxy] create talble orders
[story 012] [zxf&wxy] we can visit someone order in order.erb
[story 012] [zxf&wxy] add orderlist page and modify its ui
[story 012] [zxf&wxy] add guid for order
[story 012] [zxf&wxy] fix the bugs when create order
[story 012] [zxf&wxy] modify the ui for order
[story 012] [zxf&wxy] modify the link in order.erb and orderlist.erb
[story 012] [zxf&wxy] add go back link for order.erb
[story 012] [zxf&wxy] modify the orderlist ui
[story 012] [zxf&wxy] add delete button for orderlist
merge app.rb and orderlist.erb
fix the conflict
Merge branch 'master' of https://github.com/tw-preschool/letusgo-team-c