Removing blackouts data set.
Various speed and plotting improvements.
Renamed file
Updating package index files
Moving pkg down one directory to make room for vignettes.
Adding initial vignette
Adding graphics
Added pngs for github page
Updating figures
Added approximation section
Tweak
Details of new version
Updated vignette
Update gitignore
Tidying up
Removing the blackouts data set
Updating the vignette
Updating vignette
Adding person and bugreport to the DESCRIPTION file
Updating help files