[evlatests] lando replacement

[Bill Sahr]

We (Daniel Lyons, Stephan Witz & myself, with a probable assist
from K.Scott) will be replacing the dbase server named lando
with the dbase server currently known as lando-new.

lando-new will become lando, and lando will become lando-old.

With this change the names "lando-new" and "lando-new.evla.nrao.edu"
will disappear from our network.

The likely date for this change is the double maintenance day
in October - Oct 15-16 (Tue-Wed), with some of the work possibly
beginning on Mon, Oct 14th.

ANY/ALL PROGRAMS, SCRIPTS, ETC THAT REFERENCE THE NAME "lando-new"
MUST BE CHANGED.

If one uses the available aliases (CNAMEs), the changes can be
made now, and no future changes should be necessary.

The available aliases are:

evlaparm-proddb.evla.nrao.edu
Will always point to the system currently hosting the production
version of the evla parameters dbase.

evlampts-proddb.evla.nrao.edu
evlampt-proddb.evla.nrao.edu
Will always point to the system hosting the production version of
the evla antenna monitor data archive.  evlampts is to be preferred
over evlampt.

widarmpts-proddb.evla.nrao.edu
Will always point to the system hosting the production version of
the widar correlator monitor data archive.

The statement "will always point to the system"  will hold true even
if it is necessary to rollover to the standby dbases.  The alias/CNAME
entry will be changed at the router level, requiring no change in
application software.

If none of these CNAMEs/aliases serve your purposes, please let me
know.