* Reorder and clarify the 'Request Data' guide, adding a section on RequestParameters
* Clarify routing guide, adding introduction and HTTP types sections
* Clarify the use-cases of middleware
* Clean up formatting in the exceptions guide and add some common exceptions.
* Fix formatting of blueprints and add use-case example.
* Clarify the class-based views guide
* Clarify and fix formatting of cookies guide
* Clarify static files guide
* Clarify the custom protocols guide.
* Add more information to the deploying guide
* Fix broken list in the community extensions list.
* Add introduction and improve warning to contributing guide
* Expand getting started guide
* Reorder guides and add links between them
* Standardise heading capitalisation
