add checks every 1s to make sure all child processes are running: exit on failure or child task killed

Merge branch 'development_0.9.5/2.2.2' of gitlab.surrey.ac.uk:ri0005/binary_c-python into development_0.9.5/2.2.2

Merge branch 'development_0.9.5/2.2.2' of gitlab.surrey.ac.uk:ri0005/binary_c-python into development_0.9.5/2.2.2

install.sh now uses "-y" to skip questions about uninstall

ensemble.py's load_ensemble() now has a 'quiet' options to stop the spinner being shown on the command line : useful when this is run in a script

grid.py's Xinit removal code has been cleaned up into a try/except instead of a load of nested checks on the dict