Merge remote-tracking branch 'origin/master'
Use QPlainTextEdit for log window rather than QTextEdit

It is only used for plain text and is much more light weight that the
full text edit class.
Refs #7331
Merge branch 'master' into feature/7452_ILL_SANS_Data_reduction
Merge remote-tracking branch 'origin/master' into feature/7452_ILL_SANS_Data_reduction
Merge branch 'master' into feature/7452_ILL_SANS_Data_reduction
Re #7452 New Setup ILL D33 Reduction.
Re #7452 Remove things not used for ILL.
Re #7452 Added pixel size.
Re #7452 Calculate qmax and qmin on the fly. set them as properties.
Re #7452 Cleanup warnings.
Re #7452 Get qmin/qmax from workspace
Re #7452 Fix value in the properties.
Re #7452 Made I(QxQy) compatible with ILL D33
Re #7452 Cleaned up setup propoerties
Re #7452 tweak beam finder
Re #7452 Use duration for normalisation
Re #7452 Make we have a binning we can work with
Re #7452 IDF with right pixel size and monitors
Re #7452 test file for ILL D33 non tof data
Re #7452 Added monitor info + fix non tof Q calculation