[NTG-context] Changing page orientation - Landscape/Portrait

[Miguel Queiros]

> \start\startlocal
> \setuppapersize [A4, landscape] [A4, landscape]
> \stoplocal
> 
> PAGE TWO
> \page
> \stop
> % end of local layout

I'v tested your solution and it worked, but I had problems trying to get
a table inside a buffer using \startbuffer etc... I removed \start and
\startlocal , \stoplocal and \stop and it worked fine.

Whats the purpose of these comands ?

I thought about using \setuppapersize to change page orientation but
I thought that it might exist a command that will change just a single
page...

> You can add this to the wiki, if you like ;)

I willl... as soon as I have the time! 

Thank you,
Miguel Queirós