Added bootstrapDirectory to Image Definition so that the directory of sources that the image is built from can be varied separately from the original system.
Added bootstrapDirectory to Image Definition so that the directory of sources that the image is built from can be varied separately from the original system.

krfkeith/slate-language,krfkeith/slate-language,briantrice/slate-language,krfkeith/slate-language,krfkeith/slate-language,krfkeith/slate-language,briantrice/slate-language,briantrice/slate-language,krfkeith/slate-language,briantrice/slate-language,briantrice/slate-language,briantrice/slate-language