Updated R version as tensorSlice funtion did not work correctly in earlier versions. Changes to tensorSlice made in previous commit undone as R update corrects the problem.

Merge branch 'master' of fhm-chicas-code.lancs.ac.uk:millerp/sourceR

# Conflicts:
#	R/data.R

Removed constraint that \sum_{j} x_{ijt} > 0.  This is not required as r_{ijt} is guaranteed to be positive by prior.

> model = HaldDP(...)

Completed new data handling architecture.  Need to propagate to prior parameters and initial values.