nodequeue_subqueue_position syntax needs updating

Problem/Motivation

The nodequeue_subqueue_position function fails as it uses an old db_query method. Calling nodequeue_subqueue_position($sqid, $nid) results in Recoverable fatal error: Argument 2 passed to db_query() must be an array, string given

Proposed resolution

Update the function with the new syntax

function nodequeue_subqueue_position($sqid, $nid) {	
  return db_query("SELECT position FROM {nodequeue_nodes} WHERE sqid = :sqid AND nid =:nid", array(
    ':sqid' => $sqid,
    ':nid' => $nid,
  ))->fetchField();
}