Axis labels and aes.size -> "size"
layer2list now passes in range (so abline can pass out appropriate parameters).

coord_transform() now acts on g$data instead of df (so that layer2list actually has an effect...)

fix for ranges, and toRGB now acts at the end of layer2list (so that colour/fill changes are made appropriately).
Adapting examples to be somewhat less intensive to load.
Modifications of aes references.
Attempt to fix geom_abline()