Refs #10218.  Made change to gsas data format.

On branch feature/10218_gsas_vulcan_format
Changes to be committed:

      modified:   ../Mantid/Framework/PythonInterface/plugins/algorithms/SaveVulcanGSS.py
Fixed doc test. Refs #10218.

On branch feature/10218_gsas_vulcan_format
Changes to be committed:

      modified:   Mantid/docs/source/algorithms/SaveVulcanGSS-v1.rst
Refs #10554.  Initialize algorithm LoadSPICEAscii.
Refs #10554. Implemented algorithm.
Refs #10554.  Added a unit test and test file.
Refs #10554.  Completed the unit test.
Refs #10554.  Started to implement doc file.
Refs #10554.  Completed the documentation.
Refs #6959.  Added more information in error message.
Refs #10554.  Fixed error in doc-test.
Fixed error on category. Refs #10554.
Refs #10554.  Modified input/output properties.

For better code sharing in the next step.
Work is not completed but to be continued.
Fixed some issue with float log. Refs #10554.
Refs #10554.  Fixed for unit tests and doc test.
Re #10636. Hopefully fixing coverity builds.
Re #10636. Trying to fix the script.
Re #10636. "exit" is the correct command.
Refs #10710 Fix uninitialized scalar variable
Attempting to do a better return status
re #10697 First time setup will not show if -qx or -s or --silent set