Merge branch 'rabbitmq-dotnet-client-204'

Author: michaelklishin

.gitignore

@@ -19,6 +19,7 @@ TestResult.xml
 /NuGet
 rabbit-mock.snk
 .vscode/
+*.lock.json
 
 test.sh
 *.VisualState.xml

projects/client/RabbitMQ.Client/project.json

@@ -15,7 +15,7 @@
   "dependencies": {
   },
   "frameworks": {
-    "net45": {},
+    "net451": {},
     /*
     ".NETPortable,Version=v4.0,Profile=Profile32":{
      "buildOptions": {