[oe] Use of stamps in the source directory of openembedded-core

[Ulf Samuelsson]

After I have built openembedded-core, I notice that the source directory
is loaded with files: *.done.

Is this really a good idea?

I tend to use a common source directory for multiple projects.

Having stamps in the source directory, means that you let one
project affect the others.

-- 
Best Regards
Ulf Samuelsson