Added lots of legacy code. The idea is to update/integrate this over time.

* [ATMS,NEW] New modules for assumption-based TMS.
* [CRAWLER,NEW] New modules for Web crawling.
* [BAG,NEW] New module for BAG access.
* [WNT,NEW] New module for WNT access.
* [WORDNET,NEW] New modules for Wordnet access.