Add function to get task status "name".

There's no way, currently to get the machine name of a task status.

Closest thing is

/**
 * Traslate a task status code into a css class.
 */
function hosting_task_status_class($status = NULL) {

Branch incoming adds hosting_task_status_name() and modifies hosting_task_status_class() to implement it:

/**
 * Return a machine name for each state.
 */
function hosting_task_status_name($hosting_task_status = NULL) {
  $codes = array(
    HOSTING_TASK_SUCCESS    => 'success',
    HOSTING_TASK_QUEUED     => 'queued',
    HOSTING_TASK_ERROR      => 'error',
    HOSTING_TASK_PROCESSING => 'processing',
    HOSTING_TASK_WARNING    => 'warning',
  );
  if (!is_null($hosting_task_status) && isset($codes[$hosting_task_status])) {
    return $codes[$hosting_task_status];
  }
  elseif (!is_null($hosting_task_status) && !isset($codes[$hosting_task_status])) {
    return '';
  }
  else {
    return $codes;
  }
}

/**
 * Return a css class from a hosting task status integer value.
 */
function hosting_task_status_class($status = NULL) {
  if (!is_null($status) && $name = hosting_task_status_name($status)) {
    return 'hosting-' . $name;
  }
  else {
    return '';
  }
}