Updated specification available - draft 20110727


Updated version of the specification, incorporating the feedback received
is now posted on the SPDX site an http://www.spdx.org/spec/current.

Would very much appreciate those who have been making suggestions/bug
fixes/etc. over the last month could take a pass through it, and make sure I've
incorporated your feedback.

There's still a bit of format polishing and wordsmithing left to do, and
some diagrams/license lists to update, so its still a work in progress.