Large scale changes on Master

[jan iversen]

Hi

> 
> I think it kind of misses the point. It should start with:
> 
> Changes that make backporting of other fixes to release branch harder
> might be only be merged  *after creation of the x.y.2 release* and
> *before branchoff for the next x.y+1 release*.

I agree with your statement, but new contributors might need a bit more handholding to understand when/why a patch makes backporting more difficult. 

The page groups 3 kind of changes, and only the last kind is real critical timing wise.

I have changed the text a bit based on your suggestion.

thanks
rgds
jan I.