Astrolib version of 10-Nov-2015
Add /CFA keyword, remove /CADC keyword
Allow compressed file names to include spaces
Use cgErrorMsg rather than On_error,2
Fix problem with string 'less than' searches
Fix occasional problem with strings with numerical content
Avoid LONG overflow for very large files
Check for non-standard Ctype
Check for non-standard Ctype
Merge branch 'master' of https://github.com/wlandsman/IDLAstro
documentation update
Merge branch 'master' of https://github.com/wlandsman/IDLAstro