- move IORef ops out over to the IORef module. - added IOModeEx(..) + openFileEx
- move IORef ops out over to the IORef module.
- added IOModeEx(..) + openFileEx

FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs,FranklinChen/Hugs