Changes in version 1.0.0                        

    o   Split off scuttle from scater by migrating all
	non-visualization code from the latter.

    o   Began transition to dot-separate argument names from original
	snake case format.

    o   Added a geometricSizeFactors() function, deprecated
	geometric=TRUE in librarySizeFactors().

    o   Single-object downsampling in downsampleBatches() now behaves
	more consistently with multi-object downsampling.