Ordering and filtering quotes

Based on @kosc code, reworked. As you can see, I've implemented some routing enhancements and added the filtering and ordering capabilities to our UI. Moreover, I've refactored some old code to replace some parts of routing and rendering by more reliable mechanisms (see link rendering in the `main` template and page routing for the `Quotes.list` controller action).

It should close issue #22 and pull requests #30 and #31.