ifarchive.org DL

Downloads supported games (ScummVM's Glk engine) from http://www.ifarchive.org
and puts them into their respective sub directories, depending on the engine
used.
Supported engines are:
adrift, advsys, agt, alan(2,3), archetype, frotz*, glulx(e)*, hugo, jacl,
level9, magnetic, quest, quill*, scott, tads*.

* Those are actually not supported in ScummVM 2.2.0.

Note:
- The size of the downloadable supported games/data, is ever so growing and
  will be over 1500 files with roughly 2.2 GB as of this scripts versions,
  so make sure to have enough free space at the destination directory.
- Different language versions of certain games will be downloaded.
- There still are some doublettes of games.
  Mainly of those that have been in a competition package before and were
  later added (updated game file or simply added stuff) to it's correct engine
  directories.
  I left those in, since they mostly add some informative stuff (i.e. pics,
  readmes, walkthroughs, development notes etc.).


Features:
- Expandable script. If more engines get supported, then those can be added
  by advancing the p_supported list (see below).
- Source directories ("source", "src" dirs), obsolete revisions of games
  ("old" dir) and double data ("original" dir) will be skipped.
- The scripts destination path is adaptable, see p_destination.


History:
0.1
	- Initial release
	- Only download data/games that are supported (depending on it's engine
	  used)
	- Exclude single files (those will break the script and they aren't games
	  anyway, normally they are .htlm, .doc or other supporting files)
	- Fix html codes (e.g. %20) in links and use correct file/path names
	- Support subdirectories
	- Check for and skip "source", "src", "old" and "original" game revisions
	- Check for and skip already downloaded entries from earlier script runs
	- Check for and fix unsupported characters ($) in game data files
	- Download the "infocom-masterpieces" (public release) from within the
	  unsupported "R" game