Source layout: adaptation/{ecap,icap} or adaptation, ecap, icap

[Alex Rousskov]

Hello,

    For directory layout, should we use:

        src/adaptation
        src/icap
        src/ecap
        
or

        src/adaptation/
        src/adaptation/icap
        src/adaptation/ecap
        
The former makes simple grepping easier (grep */*.cc), especially when
we cleanup src/*.cc mess, but the latter feels is more "organized". 

There is also an option of moving general/shared files to its own "base"
or "common" directory:

        src/adaptation/base
        src/adaptation/icap
        src/adaptation/ecap

Thank you,

Alex.