Pull request #854: CAS-14408
Merge in CASA/casa6 from CAS-14408 to master
* commit 'd05366008d20518824619a45d31be8a63bcfa624':
Add titan_eph_from_textdata.tab to teardown list
Minor improvements in the code based on the code review
Fixed the paths to the input data files
Added tests for tocasatb.Removed the debug message.
Minor update
Fixed the bug in handing text file ephemeris data as input. Added support for non-Geocentric observer location.
