[Rd] Tutorial docs... move from R-help

[Paul Gilbert]

Martin Maechler wrote:

> If you do that, library(help = <package>)
>
>will end like
>Devore6> Further information is available in the following vignettes in
>
>...
>
This does not seem to work completely correctly (checked only on Linux) 
if there is more than one pdf file in inst/doc. The pdf files all get 
installed in the package doc directory, but library(help = <package>) 
ignores some of them.

In my case, in dse1/doc there are  files  dse-guide.pdf, dse1-guide.pdf, 
and dse1-guide-012.pdf. The last should probably be ignored as it is 
generated by the sweave process and pulled into dse1-guide.pdf.  The 
first is the most important one, but is ignored. It is the guide for the 
whole bundle which I build from vignettes for the packages, so it 
includes the second.

This problem is related to the fact that there is no good place to put 
documentation for a bundle (or other group) of packages.

Paul Gilbert