Feature/steeltoe (#324)

* #262 - Integrated Steeltoe Service Discovery with Ocelot for review.

* messing around

* seems to be working with eureka

* acceptance test passing with external lib references

* #262 support for netflix eureka service discovery thanks to pivotal

* #262 fixed warnings

test/Ocelot.ManualTest/appsettings.json

@@ -2,9 +2,15 @@
   "Logging": {
     "IncludeScopes": false,
     "LogLevel": {
-      "Default": "Trace",
+      "Default": "Error",
       "System": "Error",
       "Microsoft": "Error"
     }
+  },
+  "eureka": {
+    "client": {
+      "serviceUrl": "http://localhost:8761/eureka/",
+      "shouldRegisterWithEureka": true
+    }
   }
 }