More non-blocking notifications

src/freedombone-installer

@@ -1488,10 +1488,10 @@ function backup_and_restore {
           echo "if /usr/bin/timeout $BACKUP_TIMEOUT_SEC /usr/local/bin/${PROJECT_NAME}-restore-local simple \"\$backup_password\" >> $webadmin_install_dir/restore.txt; then";
           echo "    echo \"Completed \$(date)\" >> $webadmin_install_dir/restore.txt";
           echo "    cp $webadmin_install_dir/restore_complete.html $webadmin_install_dir/restore_progress.html";
-          echo "    /usr/local/bin/${PROJECT_NAME}-notification -m \"$restore_success_message\" -s \"[${PROJECT_NAME}] $restore_title\"";
+          echo "    /usr/local/bin/${PROJECT_NAME}-notification -m \"$restore_success_message\" -s \"[${PROJECT_NAME}] $restore_title\" &";
           echo 'else';
           echo "    cp $webadmin_install_dir/restore_failed.html $webadmin_install_dir/restore_progress.html";
-          echo "    /usr/local/bin/${PROJECT_NAME}-notification -m \"$restore_failed_message\" -s \"[${PROJECT_NAME}] $restore_title\"";
+          echo "    /usr/local/bin/${PROJECT_NAME}-notification -m \"$restore_failed_message\" -s \"[${PROJECT_NAME}] $restore_title\" &";
           echo 'fi';
           echo '';
           echo "chown www-data:www-data $webadmin_install_dir/restore.txt";
@@ -1547,10 +1547,10 @@ function backup_and_restore {
               echo "if /usr/bin/timeout $BACKUP_TIMEOUT_SEC /usr/local/bin/${PROJECT_NAME}-backup-local simple \"\$backup_password\" >> $webadmin_install_dir/backup.txt; then";
               echo "    echo \"Completed \$(date)\" >> $webadmin_install_dir/backup.txt";
               echo "    cp $webadmin_install_dir/backup_complete.html $webadmin_install_dir/backup_progress.html";
-              echo "    /usr/local/bin/${PROJECT_NAME}-notification -m \"$backup_success_message\" -s \"[${PROJECT_NAME}] $backup_title\"";
+              echo "    /usr/local/bin/${PROJECT_NAME}-notification -m \"$backup_success_message\" -s \"[${PROJECT_NAME}] $backup_title\" &";
               echo 'else';
               echo "    cp $webadmin_install_dir/backup_failed.html $webadmin_install_dir/backup_progress.html";
-              echo "    /usr/local/bin/${PROJECT_NAME}-notification -m \"$backup_failed_message\" -s \"[${PROJECT_NAME}] $backup_title\"";
+              echo "    /usr/local/bin/${PROJECT_NAME}-notification -m \"$backup_failed_message\" -s \"[${PROJECT_NAME}] $backup_title\" &";
               echo 'fi';
               echo '';
               echo "chown www-data:www-data $webadmin_install_dir/backup.txt";
@@ -1575,10 +1575,10 @@ function backup_and_restore {
                 check_for_existing_processes $format_script
                 { echo "if /usr/bin/timeout $FORMAT_TIMEOUT_SEC /usr/local/bin/${PROJECT_NAME}-format simple > $webadmin_install_dir/format.txt; then";
                   echo "    cp $webadmin_install_dir/format_complete.html $webadmin_install_dir/format_progress.html";
-                  echo "    /usr/local/bin/${PROJECT_NAME}-notification -m \"$format_success_message\" -s \"[${PROJECT_NAME}] $format_title\"";
+                  echo "    /usr/local/bin/${PROJECT_NAME}-notification -m \"$format_success_message\" -s \"[${PROJECT_NAME}] $format_title\" &";
                   echo 'else';
                   echo "    cp $webadmin_install_dir/format_failed.html $webadmin_install_dir/format_progress.html";
-                  echo "    /usr/local/bin/${PROJECT_NAME}-notification -m \"$format_failed_message\" -s \"[${PROJECT_NAME}] $format_title\"";
+                  echo "    /usr/local/bin/${PROJECT_NAME}-notification -m \"$format_failed_message\" -s \"[${PROJECT_NAME}] $format_title\" &";
                   echo 'fi';
                   echo "chown www-data:www-data $webadmin_install_dir/format_progress.html";
                   echo '';