* cache key now can generate from query string for request with Get Methods and request content for requests with post methods
* MD5Helper Added. OutputCacheMiddleware now can generate cache key using method, url and content
* unit test created for CacheKeyGenerator
* CacheKeyGenerator Registered in OcelotBuilder as singletone
* copied everything from repos back to ocelot repo
* added src projects to sln
* removed all test projects that have no tests
* added all test projects to sln
* removed test not on master
* merged unit tests
* merged acceptance tests
* merged integration tests
* fixed namepaces
* build script creates packages for all projects
* updated docs to make sure no references to external repos that we will remove
* +semver: breaking
