Add minimal request logger
Don't use Application#index as root route
Use custom date serializer for Invoice dates
Ignore ID attribute in JSON serialization
Let all controllers inherit (now abstract) Application controller
Simplify view rendering in controllers by importing and calling view actions directly
Start using new respondTo helper in Invoices controller
Order invoices by dueDate
Quick implementation of client side POSTing and rendering of Invoice
Merge with remote
Remove origs