Version 1.6
* use bash, not sh
* Version for DiFX-2.3, Dec 20, 2013
* Left unchanged for DiFX-2.4, Nov 4, 2014
* Left unchanged for DiFX-2.5, May 16, 2017

Version 1.5
* Clean up some loose pointers
* Version for DiFX-2.2

Version 1.4
* Fix error in handling of mount types
* Version for DiFX-2.0.0, unchanged for DiFX-2.0.1 (10 June 2011)
* Unchanged for DifX-2.1 (May 4, 2012)

Version 1.3
* Fixes from Olaf Wuchnitz, both in calc9.1 and in CALC5Server
* Quash some compiler warnings by not ignoring return values of system() calls
* Version for DiFX-1.5.3

Version 1.2
* fix syntax of ocean table and add new entry for YS
* Version for DiFX-1.5

Version 1.1
* fix long path/filename
* NRAO-DiFX-1.1

Version 1.0
* initial version