code reorganization: platform refactoring

Objectives :
============

• fix circular dependecies issues
• extract UI toolkits to make them easily usable
• make code layout more in phase with hight level NXP presentation

Constraints :
=============
As we are in RC Phase, the code reorg will occur as much as possible without any impacting renaming.
This means :

• no java package renaming
• no (or few) maven artifact renaming
• no NXRuntime components/services renaming

Target Layout :
===============

nuxeo-runtime :
---------------
unchanged

nuxeo-core :
------------
Probably unchanged.

nuxeo-services :
----------------
This maven group is a subset of what is currently in nuxeo-platform.
We will put here all the services and components that can be dependecies of the UI toolkits and provide infrastructure for the upper layers.
This typically includes :

• Directories
• UserManager
• Action Service
• MimeTypes service
• WebCommon
• Placeful service
• ...

Basically the services found here are more infrastructure services than ecm services.

nuxeo-themes :
--------------
This group will contains the current Nuxeo-Themes infrastructure.
Specific integration with ui-toolkits (jsf and webengine) will be moved to the toolkit groups.

nuxeo-jsf :
-----------
This group will contains the JSF toolkit for Nuxeo.
This group includes ui-web and probably a part of webapp-core.
NXThemes / JSF integration will be part of this group.

nuxeo-webegine :
----------------
This group will contains the WebEngine infrastructure.
Web applications using WebEngine (sites, wiki ...) will be moved to features.
NXThemes/WebEngine integration will be part of this group.

nuxeo-gwt :
-----------
Will probably remain unchanged.

nuxeo-features :
----------------
This maven group will be a merge of nuxeo-platform and addons.
This group will hold all the ecm features organized with parent poms like this is the case in Addons.
Target layout is :
nuxeo-features
nuxeo-someSuperFeature
nuxeo-someSuperFeature-api
nuxeo-someSuperFeature-facade
nuxeo-someSuperFeature-core
nuxeo-someSuperFeature-jsf
nuxeo-someSuperFeature-webengine
nuxeo-someOtherSuperFeature
nuxeo-someOtherSuperFeature-api
nuxeo-someOtherSuperFeature-facade
nuxeo-someOtherSuperFeature-core
nuxeo-someOtherSuperFeature-jsf
nuxeo-someOtherSuperFeature-webengine

nuxeo-incubator :
-----------------
This repo will hold the nuxeo-features that are in incubator stage.
Some of the packages currently in Addons will go here.

nuxeo-dm :
-------------------
This group will contains the UI code and config that is specific to Nuxeo-DocumentManagagement distribution.
As a first step, this will be a subpart of current webapp-core.