* #574 consolidate some code, man the config stuff is a mess!
* #574 just use the downstream re route and the key for caching http clients
* #574 added benchmark, i was suprised to learn using a complex type was faster than a string in benchmark .net dictionary tests, hey ho probably dont have enough data in the type...
* Made the file config poller use IHostedService, bit more generic, not just need to provide the correct implementations of the repo services and it will poll anything..this means we can open up redis for #458
* removed comments
* #458 allow users to set rate limits per service for dynamic re routes
* #458 added docs for rate limting on dynamic reroutes
* #428 dont use dynamic routing unless service discovery provider explictly set and log that we are going to use dynamic info
* #428 fixed tests that were failing due to not maintaining backwards compat with config for service discovery
* #340 started looking at supporting automatic routing when using service discovery
* #340 getting old routing tests to pass
* #340 renamed stuff to provider rather than finder, as its not longer finding anything
* #340 working towards supporting dynamic routing
* #340 loads of refactoring to make configuration work with dynamic routing
* #340 refactor consul config code so the registry class owns it
* #340 default to consul to maintain backwards compat
* #340 added docs, finished this branches todos
