Towards the ccid-3 and ccid-4 integration

Hi list,
  I'm currently trying to define the steps in order to get a good
patchset for the initial ccid-4 implementation. Thus, I'd like to
discuss with all of you some topics and procedures:

- Rewrite all the patches (from me and Tommi) and resubmit to Gerrit
as a unique patchset, as suggested by Ian. Besides, ask Gerrit to
overwrite the current ccid4 branch;
- Identify and provide common code between ccid-4 and ccid-3.
  1 - minor functions from ccid-3.c to ccid-3.h and include it (.h) in
the ccid-4.c, as suggested by Ian and Arnaldo
  2 - for more complex functions, write a dccp_ccid3_lib.ko, as
suggested by arnaldo

Please, let me know if I've forgot something.

Leandro.