* breaking upgrade base build image to net5.0
* add make and build tools to image
* fix code broken after net5.0 upgrade
* fix warnings
* fix tests and line endings
* upgrade dotnet test and coverages packages
* update circle build image
* removed rafty and updated more packages
* bring back develop
* rename authorisation to authorization
* #296 renamed configuration.json to ocelot.json in preparation
* removed things we dont need for tests
* another file we dont need
* removed some async we dont need
* refactoring to consolidate configuration code
* removed another pointless abstraction
* #296 started writing merge code
* #296 coming up with ideas for this config merging
* #296 still hacking this idea around
* #296 will now do a crappy merge on the configuration
* #296 change so tests pass on windows
* #298 initial hacking around better aggregation
* #298 bit more hacking around
* #298 abstraction over httpresponsemessage
* #298 tidying up
* #298 docs
* #298 missed this
* #306 example of how to do GraphQL