Disable strict aliasing warning on gcc4.4

A known issue with gcc 4.4 & boost optional
Refs #14089

Tested using mantidplotnightly. Ran with success a full reduction. This ticket can be merged.

Set/Get monitor workspace from Python.

QLRun Mantid Algorithm

No errors were produced when performing the testing procedure. Beam center was shifted correctly in `0 iterations` test. Happy to merge

Refs #13826

Refs #13826

Merge pull request #14080 from mantidproject/13757_correct_run_number_on_stitch_workspaces_for_refl_gui

Give more appropriate run number in stitched workspace names for SURF in Reflectometry GUI

EnggDiffraction::fixes red symbol displayed when run number given

Option of using old SplineSmoothing algorithm

Refs #13826

Sort column maintained across ICat search tabs

Refs #14006

Refs #13869

Added alias PermuteMD for algorithm TransposeMD

Refs #13826

Refs #13286

ContainerSubtraction scaleX for off centre peaks

Refs #13869

Fix the fix for coverity issues in OPJFile

Refs #13826

Refs #13826

Refs #13826

Refs #13869

For stitched runs the suffix of the workspace (after the underscore) should
now show the all the numbers after the third index of the whole runno

Refs #13757

Refs #13993

Find correct QMin and QMax values for stitching plots in Reflectometry GUI

Fix compilation on rhel 6 with gcc 4 8

After going through the test procedure everything was as expected. 

Refs #14058

Refs #13993

Coverity issues - OPJ