/// <summary>
        /// Get the url of a HC build by the  OS, architecture and version properties
        /// <summary>
        public string GetBuildUrl(string os, string arch, string version = "latest")
        {
            HcReleasesBuild hcBuild = GetBuild(os, arch, version);

            if (hcBuild != null)
            {
                return(hcBuild.Url);
            }
            else
            {
                return(null);
            }
        }
        /// <summary>
        /// Get an HcReleasesBuild object by the OS, architecture and version properties.async
        /// If build is not found returns null
        /// <summary>
        public HcReleasesBuild GetBuild(string os, string arch, string version = "latest")
        {
            string requestedVersion = version;

            if (version == "latest")
            {
                requestedVersion = GetLatestVersion();
            }

            HcReleasesBuild   hcBuild   = null;
            HcReleasesVersion hcVersion = Versions[requestedVersion];

            if (hcVersion != null)
            {
                hcBuild = hcVersion.Builds.Where(
                    build => build.Os == os && build.Arch == arch
                    ).SingleOrDefault();
            }
            return(hcBuild);
        }