Add units to AddSampleLog and AddSampleLogMultiple

Some tests fail because they use positional arguments in python scripts. Instead of fixing them, I just moved the "LogUnit" to be in the last place

Update ParaView 

Issue is closed with code review and testing. 

Fixing bug in wrapper script on rhel6

Peaks and DetCal files for instruments with tubes

FindPeaks: logs about fit parameters, notice level  -> debug level

Fixed a broken link

LoadVesuvio does not load the PAR file when in single foil mode

Single function to load parameters associated with a nexus file

Add NormalisedPolygon rebinning support to ConvertToReflectometryQ

Minor change to a code comment in test

Fix X label after FFT transformation

Revamp the tomo/IMAT GUI with MVP pattern, and add unit tests

Fix MantidPlot Pyplot savefig

Make corrections workspaces children of the sample

Merge pull request #13067 from mantidproject/feature/7050_add_grouped_test_for_MaskWorkspaceToCalFileTest

added grouped unit test, and sped up all unit tests by 5 times

By moving from laoding files to CreateSampleWorkspace
25-30sec -> 5.2sec

re #7050

Expand LoadDiffCal usage