CloudLogger has memory leaks

[DarkNoir]

1. Need to dispose of FileStreams:
   using FileStream fs = File.Create(LogFilePath);
   fs.Close();

2. Should add await Task.Run:

   public async void Log(LogLevel level, string message)
   {
   await Task.Run(() =>
   {
   if (level >= MinLevel)
   {
   var cloudLog = new CloudLog()
   {
   Severity = level.ToString(),
   Message = message,
   Timestamp = DateTime.UtcNow
   };

            Send(LogFilePath, cloudLog, Resolver.MeadowCloudService.SendLog);
        }
    });
   

   }

3. Fix memory leak in MeadowCloudService.SendLog and SendEvent where HttpResponseMessage and StringContent are not being disposed of

@bryancostanich , I tried to contribute by fixing this and the MeadowCloudLog but wasn't able to branch and create a pull request