Import v2.19.5
Merge branch 'vendor'

Conflicts:
	Makefile.am
	Makefile.in
	analyse.c
	assoc.c
	astrom.c
	astrom.h
	back.c
	catout.c
	check.c
	check.h
	config/default.param
	config/default.sex
	define.h
	field.c
	fits/Makefile.in
	fits/fitsbody.c
	fits/fitscat.h
	fits/fitscat_defs.h
	fits/fitscleanup.c
	fits/fitshead.c
	fits/fitskey.c
	fits/fitsmisc.c
	fits/fitsread.c
	fits/fitsutil.c
	fits/fitswrite.c
	globals.h
	makeit.c
	param.h
	preflist.h
	prefs.c
	prefs.h
	psf.c
	readimage.c
	refine.c
	scan.c
	sexheadsc.h
	types.h
	wcs/Makefile.in

Far from all fixed...
Missed conflict hunk
Back to vendor astrometry handling, this needs reimplementing using AST for this merge
Compiles, with many changes, most important is re-development of WCS support
Regenerate some build files
Get pixel scale working and fix radian/degrees issues
Add access to FITS header block
Make sure lat/lon axes are zero based for indexing arrays
Need prefs initialisation to get FITS byteswap
Disable FITS extension parsing [n], NDFs are not selected this way
Get check images working again