[gentoo-portage-dev] emaint rewrite

[Brian Dolbec]

I have just rebased the emaint re-write that I did some time ago.  I
have also updated the modules for changes since I originally did the
rewrite into a plug-in modules system.

The changes have been condensed down into several key commits.

The emaint branch is available on github:

https://github.com/dol-sen/portage

It is now very easy to add or remove modules, by only adding/removing
the modules directory to/from the emaint/modules directory.

All the help and menu options are picked up and added automatically.
The modules.py code also only imports the individual module's
__init__.py which contains the module_spec.  The target module is only
imported when it is requested, keeping speed and overhead to a minimum.

The overall benefit to portage is that emaint should be easier to
maintain, the modules are also now available to portage/emerge or other
tools for internal script use, not just the bin/emaint script.  The
plug-in code in modules.py is also universal in nature and can easily be
moved elsewhere in portage's namespace.  It can be used for any number
of independant plug-in systems.  The plug-in modules can also be more
complex in nature as well as export more than one specific functionality
as well as more than just ["check", "fix"] options.

I have also just created a cleanconfig module inspired from this forum
topic:
http://forums.gentoo.org/viewtopic-t-905022.html

Please test it out to ensure everything is working 100%.

To test just how easy it is to add/remove modules, simply move one or
more modules in/out of the emaint/modules directory and run emaint
--help, etc...

I have some other dummy example modules I had prepared and will add them
to the branch in an example-modules directory.
-- 
Brian Dolbec <dolsen@g.o>