Make ipaclient a Python library like ipapython, ipalib, etc.
Use setup.py instead of autotools for installing it.

Move C client tools, Python scripts, and man pages, to client/.

Remove old, empty or outdated, boilerplate files (NEWS, README, AUTHORS).
Remove /setup-client.py (ipalib/setup.py should be used instead).

Update Makefiles and the spec file accordingly.

https://fedorahosted.org/freeipa/ticket/5638

Reviewed-By: Jan Cholasta <jcholast@redhat.com>

The __all__ list does not cause submodules to be imported, e.g.
one would still have to `import ipaclient.ipachangeconf` rather than
just `import ipaclient` to use `ipaclient.ipachangeconf`.

Even if they did do anything, the lists were incomplete, and (since
`import *` is not used on these modules) unnecessary.

Pylint 1.0 reports undeclared names in __all__ as a warning.

The changes include:
 * Change license blobs in source files to mention GPLv3+ not GPLv2 only
 * Add GPLv3+ license text
 * Package COPYING not LICENSE as the license blobs (even the old ones)
   mention COPYING specifically, it is also more common, I think

 https://fedorahosted.org/freeipa/ticket/239

- Removing shebangs (#!) from a bunch of python libraries
- Don't use a variable name in init scripts for the lock file
- Keep the init script name consistent with the binary name, so renamed
  ipa-kpasswd.init to ipa_kpasswd.init
- Add status option to the init scripts
- Move most python scripts out of /usr/share/ipa and into the python
  site-packages directories (ipaserver and ipaclient)
- Remove unnecessary sys.path.append("/usr/share/ipa")
- Fix the license string in the spec files
- Rename ipa-webgui to ipa_webgui everywhere
- Fix a couple of issues reported by pychecker in ipa-python

Right now it does only discovery (or fallback)