Improvement in OrionDB_DB_MySQL.php

Currently the runquery function only allows a query to be run on the database if a proper tablename is provided. This is not always useful, especially when running queries that take information from many tables. As the tablename is only used to format an error message, it is better to adjust the error message depending on what information is in the $tablename parameter. The body of the function then becomes this:

if($query == "") return false;
if($tablename == ""){
 $tablename = $this->get_tablename_in_proper_case($this->cleansql($tablename));
   $errormessage = "Error while retrieving a collection from table " . $tablename;        
}
else {
   $errormessage = "Error while executing an multi-table query.";
}

$result = mysql_query($query) or fataldberror($query, $errormessage . ": " . mysql_error());
$numrows = mysql_num_rows($result);
if($numrows > 0){
  $returnarray = array();
  for($index=0;$index<$numrows;$index++){
    $returnarray[] =  mysql_fetch_array($result);
  }
  return $returnarray;
} 
else return false;