removing 'changes' section from the online edition

[Warren Block]

On Sat, 1 Jun 2013, Gabor Kovesdan wrote:

> Em 01-06-2013 20:52, Warren Block escreveu:
>>> No objection from me, I just want to bring it up again that handling these 
>>> with a single-source solution would be nice, i.e. using DocBook profiling. 
>>> It would also facilitate merges. This basically consists of adding 
>>> edition="print" to the affected section of preface and then setting up 
>>> profiling. (I can do it, just ping me if there is consensus on this).
>> 
>> Yes!  I was just talking about this elsewhere.  Could we do it so only the 
>> non-print sections need to be modified? 
> You only need to add edition="online" to non-print sections. And only need to 
> add edition="print" to non-online sections. The rest is shared and the markup 
> is kept minimal.

How do you control which is included when the document is built?