Made this into a module.  The module can be called the same as the previous script but now the module can be used to build CFHT ET files in scripts.  Used in OSSOSPLot.
added the ephemeris uncertainty to the 'summary' line.  (to help with planning recoveries) .. also cleaned up some PEP-8 stuff
Added CFHT ET mode to the pointing files save.  This creates an ET file for each pointing where the ET motion of the field is built from the mean motion of KBOs in the FOV.   Individual files are created for each pointing.  The files are named based on the name of the Pointing, so take the time to name your pointings.  Writes to the CWD.
corrected 'Client' to use the most recent version of VOS.  the OSSOS package now requires the most resent releases of the VOS...