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Add drop = FALSE to be safe
Avoid more non-standard evaluation
Implement as.table for facet_grid.
Fix panel ordering bug
Support drop in facet_grid and facet_wrap.
Add missing newlines
Remove facet_wrap drop param, as it's not obvious what it should do
facet_wrap as.table working
Layout for facet_wrap
Fix grid layout bugs for nested layouts
Display working with 2d grid
Un-document internal layout functions
Replace expand.grid.df from reshape
Including updating of old layout and locate tests to work with reshape2.
Copy over all new files