MokoMakefile disabling of "svnnow" and new force-rebuild target

[Rod Whitby]

Werner Almesberger wrote:
> Rod Whitby wrote:
>> Whether or not you agree with the OpenMoko core dev's decision to use
>> the "svnnow" functionality,
> 
> Don't worry, we hate it too :-) It's just the lesser evil for now,
> since we have quite a number of things that change very rapidly,
> and we need the latest versions for other work. With "svnnow",
> we're at least sure we won't miss anything new.

Don't get me wrong - I fully appreciate the need for it in your
situation.  Some other people have spoken out strongly against it in
IRC, but I take a much more "inclusive" attitude towards it :-)

I'm also cognizant of the need to make sure that Phase0 devs are
building the same images as OpenMoko core devs, to ensure that no time
is wasted on bug reports that come from building and testing different
things.  That's the main reason why I wrote MokoMakefile, so we can be
sure of reproducible environments and bug reports.  And the new
'force-rebuild' target, which should ensure a build the same as the core
devs are doing.

-- Rod