[Slackbuilds-users] orphaned academic, games (mathics, tome-sx) builds

[David Chmelik]

orphaned (uploaded those changes including abridging game GitHub URL):
* academic/mathics
* games/tome-sx

available possibly (if anyone can handle the changes:
* games/crawl
* games/tome-ah
* libraries/grx

The grx library should be replaced by mgrx because now is completely 
different, and mgrx continues what the original is for... nothing 
depends on these; just wanted to make available a general graphics 
programming library to install safer.