third_party (ex-lib_3p) now ready for review.

[Ira Cooper]

The functionality of the patch as far as a "user" is concerned is much the
same.  But it has been refactored underneath so it has less code
duplication, and it is prepared for the day when we want to change the name
of the third_party directory.  (While I haven't plumbed it into configure,
one could.)

The patchset itself has been broken out into smaller more understandable
patches.

If you have comments on how to make it better, I'm all ears.

The main thing, you will find me strongly opposed to changing is the last
commit, removing the libraries, hopefully reading the popt commit will help
you understand why, along with all the discussions along the way.

I encourage you to see this as a "final draft".  (Or RC1.)  I do think it
is much more ready to go than when I started, thank you for the review
comments!  They truly did prove useful.

Trees for review:

Samba:
http://git.samba.org/?p=ira/wip.git;a=shortlog;h=refs/heads/third_party

Third party git tree:
http://git.samba.org/?p=ira/third_party.git;a=summary

Thanks,

-Ira