Merge remote-tracking branch 'origin/feature/9105_MDNorm_concept'
Enabled support for UTC time. Refs #10845."

On branch feature/10845_export_utc
* modified:   Mantid/Framework/PythonInterface/plugins/algorithms/ExportExperimentLog.py
* modified:   Mantid/Framework/PythonInterface/test/python/plugins/algorithms/ExportExperimentLogTest.py
Refs #10845.  Enabled ExportSampleLogsToCSVFile to support UTC.
Cleaned up unit test. Refs #10845."
Merge branch 'feature/10845_export_utc' into develop