WIP on gradients for scsphere
Remove "sphere", "thin" and "gaussian" partiality models, add "scgaussian"
WIP on prediction
Cell vector gradients for SCSphere, plus general rationalisation
div and R gradients for SCSphere
WIP on SCGaussian gradients
Automatic determination of profile radius
Merge branch 'master' of git://git.bitwiz.org.uk/crystfel
Fixed parsing of CRYST1