Remove specificity from message_box

Fix unused-variable warning in MuonFitDataSelector

Fix clang-tidy modernize-use-nullptr warnings

Enable archive search in system tests

Time standard deviation for TimeSeriesProperty

A change in #21089 meant that archive searching was only getting turned
on for the default facility. This restores the old behavior that for
system tests, archive searching can be turned on for all facilities.

Remove debug poco lib packages from equivs file

Double click table column heading for column options

Fix ISISReflectometryAutoreductionTest for python 3

Catch unfound workspace error

Documentation : Running tests in VS and building dev-docs html.

Fix clang-tidy misc-unused-using-decls

Numpy dtype exports to property with value

Improve peak fitting

Fix custom user docs stylesheet for Sphinx > 1.6

Fixed exception in instrument view.

Added Eclipse Documentation .rst

`string.split` doesn't exist in python 3, change to `str.split`