[evlatests] inter-band collimations

[Ken Sowinski]

There was a collimation pointing run a few nights ago.
Corrections were determined and inserted in the parameters
DB for eight antennas.  Of those ea16, ea20 and ea28 were
the worst.  This can explain some of the poor pointing
that Rick has been complaining about.

Tests are still in progress to determine how well referenced
pointing works.  The first round demonstrated that it works
well on calm nights, not nearly as well at sunset with gusty
20 mph winds.  More to come.