Log Message:
Update tex-epstopdf{,-doc} to 2.20

Changes:
    * New command line argument --(no)safer which allows setting
      -dNOSAFER instead of -dSAFER (only for non-restricted).
    * New command line argument --pdfsettings for
      Ghostscript's -dPDFSETTINGS.
    * New command line argument --(no)quiet.
    * New command line argument --device for specifying a differnt
      Ghostscript device (limited set of devices for restricted mode).
    * New command line arguments --gsopts and --gsopt for adding
      Ghostscript options.
    * Full support of ghostscript's option -r, DPIxDPI added.
    * Support for DOS EPS binary files (TN 5002) added.
    * Removes PJL commands at start of file.
    * explain option naming conventions (= defaults for Getopt::Long).
    * use /usr/bin/env, since Ruby has apparently required #! for years,
      and we rely on it for our other scripts, so why not.
    * uselessly placate -w.  Debian bug 672281.