* #280 can now add response headers inc trace id, now need to consolidate the header place holder stuff
* #280 changed port for linux tests
* #280 lots of hacking around to handle errors and consolidate placeholders into one class
* 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
* New feature that lets a user do find and replace on an upstream header
* can transform downstream and upstream headers, not sure if interface is good
* can replace location header with placeholder
* added some syntax