Fix some context uploading bits

// Write build context to builder

void write_context(websocket::stream<tcp::socket> &builder_stream, const ClientData &client_data) {

    // Create unique directory

    std::string context_temp_path = bfs::unique_path(bfs::temp_directory_path().string() + "/%%%%-%%%%-%%%%/cb-context").string();

    std::string temp_path = bfs::unique_path(bfs::temp_directory_path().string() + "/%%%%-%%%%-%%%%").string();

    std::string context_temp_path = temp_path + "/cb-context";

    bfs::create_directories(context_temp_path);

    Logger::debug("Created temp context directory: " + context_temp_path);

    // If requested copy current context directory to context tmp

    if(client_data.transfer_context) {

        bfs::copy_directory(".", context_temp_path);

        bp::system("cp -r ./* " + context_temp_path);

        Logger::debug("Copied full context");

    }

    // Copy the definition file to context tmp

    // Copy definition file, renaming it to cb-definition

    bfs::copy_file(client_data.definition_path, context_temp_path + "/cb-definition");

    Logger::debug("Copied definition: " + client_data.definition_path);

    // Tar context tmp directory to cb-context.tar.gz

    std::string context_tar_file = bfs::unique_path(bfs::temp_directory_path().string() + "/%%%%-%%%%-%%%%/cb-context.tar").string();

    std::string context_tar_file = temp_path + "/cb-context.tar";

    bp::system("tar zcvf " + context_tar_file + " " + context_temp_path);

    Logger::debug("Created tarball of context directory");

    // Transfer context tar

    write_file(builder_stream, context_tar_file);

    Logger::debug("Wrote context tarball");

    // Remove context tmp

    bfs::remove_all(context_temp_path);

    bfs::remove_all(temp_path);

    Logger::debug("Removing temp directory" + temp_path);

}

int main(int argc, char *argv[]) {

        write_client_data(builder_stream, client_data);

        // Write build context/recipe

        WaitingAnimation wait_context("Transfering context payload to builder");

        WaitingAnimation wait_context("Transferring build context to builder");

        write_context(builder_stream, client_data);

        wait_context.stop_success("Completed");