Update CHANGES with new MPC capabilities.
- HITRAN: use class-based API [#824]
- JPL Horizons: Fix for missing total absolute magnitude or phase coefficient for comets [#1151]
- MAST: Enable converting list of products into S3 uris [#1126]
+- New tool: MPC module can now request comet and asteroid ephemerides from the Minor Planet Ephemeris Service, and return a table of observatory codes and coordinates. [#1177]
- NASA_ADS: Use new API [#1162]
- VO_CONESEARCH: Service validator now uses new STScI VAO TAP registry. [#1114]
- Nasa Exoplanet Arhive: Add option to return all columns. [#1183]
