Limpia string para usar como nombre de archivo (google spreadsheet)

cleanString

function cleanString( str ) {
  var from = "ÃÀÁÄÂÈÉËÊÌÍÏÎÒÓÖÔÙÚÜÛãàáäâèéëêìíïîòóöôùúüûÑñÇç ", 
      to   = "AAAAAEEEEIIIIOOOOUUUUaaaaaeeeeiiiioooouuuunncc_",
      mapping = {};
  
  for(var i = 0, j = from.length; i < j; i++ )
    mapping[ from.charAt( i ) ] = to.charAt( i );
  
  var ret = [];
  str = str.toLowerCase();
  for( var i = 0, j = str.length; i < j; i++ ) {
    var c = str.charAt( i );
    if( mapping.hasOwnProperty( str.charAt( i ) ) )
      ret.push( mapping[ c ] );
    else
      ret.push( c );
  }      
  return ret.join( '' );
}