docs: Add missing SUN/59 document

Previously we only had the appendices.
docs: Remove binary characters from ends of some documents
figaro: Remove leading space from document number
docs: Some old versions of documents
docs: And two more old versions for SGP4 and SUN58
ircamdr: Fix SUN/41 latex so that it builds
docs: Convince the obsolete documentation to build

Mainly removing

    \begin{description}
    \begin{description}

constructs for lists with some extra indenting. Latex2e doesn't
like it at all.
docs: Recover cover picture for obsolete SUN/212.
kappa: Allow setqual to store a constant value in the quality array
Change AC_PROG_77 to AC_PROG_FC.
I do this slightly tentatively, because (a) this directory notes that
its contents 'could do with some modernisation', and (b) it's a demonstration
setup, which might therefore be slightly odd in other ways.  All that said,
this change doesn't obviously break anything....
Change DIY \ifpdf to \usepackage{pdf}
we can by now (2014) assume that this package will be
present in any half-way reasonably up-to-date TeX installation.
rolling our own just causes breakage when some other package includes
ifpdf, which hyper-cautiously bails out if it finds \ifpdf
already defined.
Tweaks to get SSN/78 to build
There were relics of Subversion in ssn78.xml (ie $Revision$),
which (because $Date$ isn't a valid date) ended up preventing it being
processed -- fixed by hand, with a recent Git revision.

Also, the .png and .gif files in the directory seemed to be
out of sync with each other for some probably-Makefile-related reason.
docs: Tweaks of permissions to .rno files and removal of non-printable characters
Merge branch 'master' of github.com:Starlink/starlink
docs: Some vintage documents from 1991

These are scans as we don't have original text.
The scans are a little large in a couple of cases.
Initial commit for new branch updating docs.

First attempt at starlink tex classes and 4ht support placed in latexsupport/
sc21 and sun258 updated to support this.
global starlink .gitignore: now ignore tex4ht files

Specifically this is now set to ignore:
*.4ct
*.4tc
*.brf
*.css
*.idv
*.lg
*.xref
Docs: sc21 and sun258, minor tidying up.
latexsupport: small fixes to latexsupport files for both pdflatex and tex4ht
latexsupport: improvements to starlink latex class and tex4ht files