Windows was giving trouble with the os.getenv(HOME) which can be executed in the python shell and IDLE and will return C:\Documents and Settings\username\, but when running a script it will return None.
If os.getenv(HOME) is None, then now the exec dir will be used instead
* Seperated the parser from the downloader code.
* Added a progressbar class, to make it look fancier
* Created some functions to do all the work in downloader.py, cleaner now
* Changed parser.py to htmlparser.py, since it was conflicting with a built-in module
