In no particular order:

* finalize the SLACKBUILDS.TXT file format, naming, and general adoption with
  sbo and gsb guys
* fix parser (see above first)
* handle *_x86_64
* handle UNSUPPORTED/UNTESTED
* translations
* determine state of prior downloads, builds?
* management of existing built/installed packages?
* more/better error handling
* improve docs
