* hacked together tracing fix by wrapping middleware delegate in another delegate
* #227 have re-implemented tracing, cleaned up trace names, probably still need some refactoring and tests as this was a bit of a hack job
* #227 bit of checking for when we dont want to use tracing, also removed a unit test for websockets that wasnt a unit test, i stuck it there because i wanted the code coverage and now im paying the price, will have to work out a better way to do it
* #227 a bit of refactoring to make this work better, still a bit hacky...would like to revisit the whole thing one day
* #227 dont need this
* #227 or this
* #227 small refactor
* hacked together load balancing reroutes in fileconfig
* some renaming and refactoring
* more renames
* hacked away the old config json
* test for issue 213
* renamed key
* dont share ports
* oops
* updated docs
* mvoed docs around
* port being used
* hacking around to work out why logging and request id isnt working
* pass request id into logger so it can be structured, removed a bunch of debug logging we dont need because diagnostic trace gets it
* changed config dependency
* always have tracing available
* made it so we dont need to pass config into services.AddOcelot anymore with .net core 2.0
* add test
* lots of changes relating to logging and request ids, also updated documentation
* fixed failing test i missed
