Experimental slice code
Documentation tidy
Added to collate field
Minor bug fixes
Documentation fixes
Fault tolerant cholesky + CRS fix.
Bug fixes in slice
Merge branch 'origin/master'

Conflicts:
	R/SGAT.R
Added zero.is.na
Added solar.residuals
Bugfix
Merge branch 'origin/master'
Merge branch 'origin/master'
misplaced CRS
Merge branch 'Expendable' into Curve