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

Refs #0

Re #23040

Fix error reporter not reporting to database

Check for whitespace only strings

Re #23056 Change error message

Prevent crash from removing non-existing layer

Switch to pure C implementation for other instance checks

Fix crash in Muon TF Asummetry

Fix unhandled exception SliceViewer in Non-orthogonal mode.

Fix validateInputs crash on WorkspaceGroup

TOFTOF GUI: improve save reduced data options

gcc 4.8 seems to have trouble denoting the correct type when using
uniform initialization with QStringList.
Refs #0

Fix warnings with GCC 7

Merge pull request #22955 from mantidproject/22913_MakeGetMemorySizeInGroupWorkspaceReturnCorrectAnswer

WorkspaceGroup->getMemorySize() now returns actual size instead of 0

Re #23040