wgnuplot help texts

[Bastian M. <bma...@we...>]

Some of the help texts defined in win.trm are not really related to the 
`windows` terminal, but to the graphical windows front end "wgnuplot". 
In my opinion those sections (text-menu, wgnuplot.mnu, parts of 
wgnuplot.ini) should be moved to gnuplot.doc. Which section would be 
appropriate? "Graphical User Interfaces?"

Bastian