[gentoo-dev] [PATCH v2] sword-module.eclass: update SRC_URI, expand a bit, clean up

[Marek Szuba]

Second iteration of proposed changes to sword-module.eclass, this time
without incrementing revision because I am fairly confident that it
should all be backwards-compatible. Changes with respect to the first
iteration:
 - SWORD_MODULE now defaults to a value extracted from PN;
 - do not bother with versioning files in advance and hosting them at
   d.g.o., just version files fetched from upstream and let Gentoo
   mirrors do their magic.