Polish intro UI
For naming consistency
Merge pull request #80 from tinysue/dev

Polish intro UI
Rewording intro page
Merge pull request #82 from tinysue/dev

Rewording intro page
Merge pull request #81 from this-username-is-taken/delivery_bucket_naming

[REST] Naming consistency for delivery buckets
Add payment status display.
Move invoice detail page from account to order.
Add delivery window info into order-detail.
Refactor account.UserInvoice controller.
Implement order items table.
Rename to order-items.
Add mg-enter directive.
Add guest order email auth.
Add: Invoice pages for users
Add: Order Status Page
Add: Order status list
Add order status display.
Adjust invoice page style according to design.
Add order detail table.