Update doctest runner for better compatability across sphinx versions

The output of the test script on my machine is:
```
Lattice Parameters:    9.391713   12.664594    6.068129   90.000000  107.148507   90.000000
Parameter Errors  :    0.000070    0.000094    0.000041    0.000000    0.000638    0.000000
```
The parameters match the above output within errors and the errors are almost the same.

I don't think the change to PawleyParameterFunction will cause any problems, but I will add a unit test anyway just to ensure we notice changes later on.

Happy to merge this.

Rename QLRun to BayesQuasi in all documents

Fix bug with std::accumulate call in CreateSampleWorkspace

Fixing issues with TOF correction in FilterEvents

Add icons to Windows shortcuts for IPython and IPython Notebooks

Fixing minor logging issues in AlignAndFocusPowder

Refs #14129

The higher-level call has been refactored in Sphinx >= 1.2.2 so that it
call sys.exit on its own. We want to call main and get the return value.

If the colorama package is available then Sphinx colorizes the console
output. This doesn't play well with MantidPlot and hides the output
when running with -xq.

Move memory from temporary workspace rather than copy

Refs #14129

The initial value had the wrong type so each additional was converting
the double to an int leading to the incorrect result.
Refs #14129

Refactoring of mlzutils. Step 1. CompareSampleLogs algorithm.

Set values in SlitCalculator based on data from Instrument Definition

Functionality was as expected from test procedure, all seems fine so, Happy to merge.

Add Comment Algorithm

Renamed output of apply/calculate paalmanpings tabs

ContainerSubtraction shift x changes

System Test for SplineSmoothing algorithm

Provide mandatory properties with mandatory validators in CreateMDHistoWorkspace

Engg GUI: move RB number field

Remove old code structure

CreateMDHistoWorkspace used a method in ImportMDHistoWorkspaceBase.cpp
to declare some of its properties. Decoupling these two classss
allows us to implement mandatory property changes to CreateM
CreateMDHistoWorkspace without affecting ImportMDHistoWorkspaceBase.cpp

Refs #13912

Refs #13972

Refs #14082

Refs #13969