Remove astron.dir.tar

Remove ta file
June 14 update

14-Jun-2014: EQ2HOR - Fix case of scalar position but vector JD

3-Jun-2014: TSUM() - Added /NaN keyword

30-May-2014:  EXTAST - Fixed bug introduced Jan 2014 where SIP
parameters were
                not recognized when NAXIS = 0
Merge branch 'master' of https://github.com/wlandsman/IDLAstro