[R-gui] RGtk2 2.8.4 and cairoDevice 1.0.0 released

[Michael Lawrence]

I am pleased to announce a new version of RGtk2 (2.8.4) and its sibling 
cairoDevice (1.0.0).
These versions actually represent significant revisions in that both of 
them now pass "R CMD check" so that they could theoretically be placed 
on CRAN.

Many bugs in RGtk2 were fixed and some enhancements were made to the 
RGtkDataFrame.
The naming of constants (like GDK key codes, Pango scale factors, and 
GTK stock ids) was changed to exactly match that of the C 
implementation, in order to differentiate them from function names. This 
probably doesn't affect anyone.

The cairo graphics device (cairoDevice) now supports rendering to 
GdkDrawables, which means you can leverage the GDK and GDKPixbuf API's 
(from RGtk2) to modify cairo-drawn R graphics and save them to files in 
formats like JPEG, GIF, and PNG.

Please grab these from the RGtk2 website: http://www.ggobi.org/rgtk2

Thanks,
Michael