check --as-cran
no Rd wrapping
no longer need the Roxygen field
remove tidy.gui()
add tidy.app() and a shiny app as the new user interface

no longer depends on gWidgets(RGtk2)
tweak the messy example
who cares about cat()...
tweak description and roxygenize
update the vignette to for tidy.app() and tidy.gui()
add a news item for tidy.app()
bump version