Release Candidate 1

First release candidate for draft which will be submitted to the A&C. This draft has only a small amount of redded text. One bit relates to potential fleshing out of problems with FITS tables, the other text may wind up being part of a potential argument/lession Tim is drafting on why conventions are not sufficient to the needs we have in software development with FITS.

This draft should otherwise be taken very seriously and read critically by all CO-authors.