Enables specifying sample materials without a chemical formula or atomic
number in SetSampleMaterial and MaterialBuilder. It is now enough to
specify the scattering and attenuation cross sections and number
density.

Re #21466

Rebin2D: avoid NaNs by skipping bins of zero size

Initial addition for CalculateEfficiencyCorrection algorithm

Add Ctrl+Enter shortcut to execute code in the CodeEditor

Fix Variable Q Binning from SANS User File

It caused an additional linker flag, -L/usr/lib/x86_64-linux-gnu, to
be added where ever the GSL_LIBRARIES variable was used. On Ubuntu 18.04
this seems to cause the linker to pick libomp over libgomp and when a
library built with GSL_LIBRARIES is then linked to an executable
built without it we get the executable link to both libomp and libgomp
resulting in undefined behaviour.

Replace PyEpics with CaChannel in GetLiveInstrumentValue

Discard preservation of events for monitor counts

Refs #0

Export SANS Table as CSV

Indirect Elwin - Load without history option

Follow changes in plotly

CodeEditor: Set executing state after the code has been retrieved

Restrict the Details window to only 1 instance

They appear to change the API in the javascript layer without fully
reflecting it in the documentation. This even affects the older python
API mantid uses.

Minor fix to absorption corrections

Columns in Matrix and Table workspace displays are now adjustable

Add PyCharm environment file to CMake configuration

Stop Hard Crash on JobTreeView Enter Press

Stop crash when writing too many errors to stderr wituout an external console to write to

Fix not showing last bin boundary in X values

Prevent a crash when property has no value attribute

Indirect Data Analysis - Result workspace names are wrong