Updated to latest CRT with bug fixes for Aws::Crt::Optional, build fi… (#46)

* Updated to latest CRT with bug fixes for Aws::Crt::Optional, build fixes for shadow_sync, discovery client now uses latest connection manager api.

Author: JonathanHenson

README.md

@@ -31,7 +31,7 @@ is provided by code that been generated from a model of the service.
 
 ## Build from source
 ```
-git clone --branch v0.4.1 https://github.com/awslabs/aws-crt-cpp.git
+git clone --branch v0.4.2 https://github.com/awslabs/aws-crt-cpp.git
 git clone https://github.com/awslabs/aws-iot-device-sdk-cpp-v2.git
 mkdir aws-crt-cpp-build
 cd aws-crt-cpp-build

discovery/source/DiscoveryClient.cpp

@@ -134,14 +134,12 @@ namespace Aws
                             }
 
                             Crt::Delete(callbackContext, m_allocator);
-                            m_connectionManager->ReleaseConnection(connection);
                         };
 
                         if (!connection->NewClientStream(requestOptions))
                         {
                             onDiscoverResponse(nullptr, aws_last_error(), 0);
                             Crt::Delete(callbackContext, m_allocator);
-                            m_connectionManager->ReleaseConnection(connection);
                         }
 
                         return;

samples/jobs/describe_job_execution/main.cpp

@@ -285,7 +285,8 @@ int main(int argc, char *argv[])
         describeJobExecutionRequest.ThingName = thingName;
         describeJobExecutionRequest.JobId = jobId;
         describeJobExecutionRequest.IncludeJobDocument = true;
-        describeJobExecutionRequest.ClientToken = Aws::Crt::UUID();
+        Aws::Crt::UUID uuid;
+        describeJobExecutionRequest.ClientToken = uuid.ToString();
 
         auto publishHandler = [&](int ioErr) {
             if (ioErr)

samples/shadow/shadow_sync/main.cpp

@@ -81,7 +81,8 @@ static void s_changeShadowValue(
     fprintf(stdout, "Changing local shadow value to %s.\n", value.c_str());
 
     UpdateShadowRequest updateShadowRequest;
-    updateShadowRequest.ClientToken = Aws::Crt::UUID();
+    Aws::Crt::UUID uuid;
+    updateShadowRequest.ClientToken = uuid.ToString();
 
     JsonObject stateDocument;
     JsonObject reported;