GDA-5386 (8.34) Create a HardwareTiggeredMedipix NX collection strategy
BLXVI-121 (8.38) Fix regression in CoordinatedScannableGroup [one more piece]
Merge branch '8.38' of ssh://dascgitolite@dasc-git.diamond.ac.uk/gda/gda-epics.git into 8.38