Feature/http async (#90)

* unittest working / uses shared_ptr for a bunch of things 🗿

* fix command line tools

* fix ws + add doc

* add more logging

ws/ixcobra/IXCobraMetricsThreadedPublisher.cpp

@@ -99,7 +99,7 @@ namespace ix
     void CobraMetricsThreadedPublisher::pushMessage(MessageKind messageKind,
                                                     const Json::Value& msg)
     {
-        // Now actually enqueue the task
+        // Enqueue the task
         {
             // acquire lock
             std::unique_lock<std::mutex> lock(_queue_mutex);

ws/ixcobra/IXCobraMetricsThreadedPublisher.h

@@ -25,7 +25,6 @@ namespace ix
         ~CobraMetricsThreadedPublisher();
 
         /// Configuration / set keys, etc...
-        /// All input data but the channel name is encrypted with rc4
         void configure(const std::string& appkey,
                        const std::string& endpoint,
                        const std::string& channel,