Mari inst update to add log file parameters to choppers

Include jsoncpp in a more portable way

Change systemtests to rhel7

Search for Qwt more rigourously

Remove RangeSelectors when PreviewPlot is in x squared

Remove CanScaleFactor option from FlapPlatePaalmanPingsCorrection

Some systems ship `libqwt5.so`, which is currently not found by this module.

Fix new plot policy

Cross platform indirect absorption correction algorithms

dgreduce does not work with workspaces as inputs

Fixing usability issues for reducing HFIR data from SPICE file

Fix Cppcheck warning (unused variable in IntegrateEllipsoids)

Thanks for fixing the bug, Owen

Refs #11365

Refs #11365

MSDFit Python algorithm

Refs #11391

MD coordinate as separate field

Test for running validateInputs in Python

Concepts file names normalised

Find_path for OPENCASCADE_LIBRARY_DIR

Both release and debug builds show no problems in Fedora20

Re #11374 Add system test for REFL

Setting a more proper tolerance

On Windows they are in a non-standard location so must be explicitly
included.
Refs #11359

This will not compile as MSDFit still needs to be changed

Refs #11365

Refs #11365

Refs #11365

Added interpolation and detector map copy to FlatPlatePaalmanPingsCorrection

DataSelector only emit dataReady signal when data changed

Refs #11365