major re-write of com.adamtait.thefutureserver.server.routes

+ remove old routes def
+ load routes mapping from EDN file
+ parse the EDN component routes
+ build compojure routes
+ add Handlers component, which depends on all the model components
+ TODO validate routes map properly
rename event/new to event/create to make routes.edn simpler & more consistent
update server component to use new Handlers component