[Tile-serving] Real time tile merging strategy

[sly (sylvain letuffe)]

On jeudi 28 mars 2013, Jon Burgess wrote:
> I was given a patch by Andy Allan 
or kai's suggestion

Thanks to all 3 of you for such ideas, I'm unsure if I'll digg into that, but 
if I do, you'll sure have a pull request from me ;-)


-- 
sly, DWG member since 11/2012
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